Showing 195 items
matching deaf children
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Vision Australia
Document - Text, Report to House Committee by Executive Director, RVIB Home Care programme for deaf/blind children, 7/4/1968
... Care programme for deaf/blind children... by Executive Director, RVIB Home Care programme for deaf/blind children ...Confidential report from Frank Y Turley about the multi-handicapped unit at RVIB Burwood school, including rationale for its establishment and some guidelines about enrolment.2 type written sheets with no letterheadroyal victorian institute for the blind, rvib burwood school, frank turley -
Vision Australia
Document - Text, RVIB Home Care programme for deaf/blind children, 18/4/1968
... RVIB Home Care programme for deaf/blind children... for deaf/blind children Document Text ...A detailed memo from Frank Y Turley about the multi-handicapped unit at RVIB Burwood school, including rationale for its establishment and some guidelines about enrolment.3 type written sheets with no letterheadroyal victorian institute for the blind, rvib burwood school, frank turley -
Bendigo Historical Society Inc.
Document - NORMAN OLIVER COLLECTION: SPEECH NOTES 15 AUGUST 1951
... Speaks'. School for Deaf Children.... municipalities, Crown lands regulations, the School for Deaf Children... for Deaf Children. The Norman Oliver collection. Norman Oliver ...The Norman Oliver collection. Norman Oliver was three times Mayor of Bendigo - 1950-51, 1964-65, 1970-71. Fourteen pages of typed notes headed Mayoral Report 15 Aug 1951. In the format he used for his talks on 3BO 'The Mayor Speaks'. Corrections in blue ink. Topics include : a proposed association of urban municipalities, Crown lands regulations, the School for Deaf Children, taxis, Kangaroo Flat bus route, the cattle markets, sewerage extensions, the Library, and Education Week.bendigo, council, speech notes, norman joseph oliver , councillor norman oliver. mayor of bendigo. 3bo 'the mayor speaks'. school for deaf children. -
Bendigo Historical Society Inc.
Document - NORMAN OLIVER COLLECTION: SPEECH NOTES 7 AUGUST 1951
... Speaks'. School for Deaf Children. Vains... of Bendigo in 1925, City By- laws, the school site for deaf children... for Deaf Children. Vains E. M. The Norman Oliver collection. Norman ...The Norman Oliver collection. Norman Oliver was three times Mayor of Bendigo - 1950-51, 1964-65, 1970-71. Fifteen pages of typed notes headed Mayor's Report 7 August 1951. In the format used for his talks on 3BO 'The Mayor Speaks'. Additions in blue ink. Topics include : death of Mr E. M. Vains (Mort), Mayor of Bendigo in 1925, City By- laws, the school site for deaf children, the traffic lights, road traffic code, the Mayor's Blanket Fund, and the end of the municipal year.bendigo, council, speech notes, norman joseph oliver , councillor norman oliver. mayor of bendigo. 3bo 'the mayor speaks'. school for deaf children. vains, e. m. -
Bendigo Historical Society Inc.
Document - NORMAN OLIVER COLLECTION: SPEECH NOTES 30 MAY 1951
... '. School for Deaf Children.... licenses, South Bendigo Football Club, the School for Deaf Children... Norman Oliver. Mayor. 3BO 'the Mayor Speaks'. School for Deaf ...The Norman Oliver collection. Norman Oliver was three times Mayor of Bendigo - 1950-51, 1964-65, 1970-71. Nineteen pages of typed notes dated 30 May 1951. In the format of his weekly talk on 3BO 'The Mayor Speaks'. Topics include : announcement of a loan for 37,000 pounds for plant and equipment, Federal Aids Roads Grants, traffic lights, taxi services, hackney carriage licenses, South Bendigo Football Club, the School for Deaf Children, the engineer's report, town planning, the Baby Health Centre.bendigo, council, speech notes, norman joseph oliver , councillor norman oliver. mayor. 3bo 'the mayor speaks'. school for deaf children. -
Deaf Children Australia
Hearing Aid, Widex P/L, Widex Hearing aid, 1950s
... deaf children australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. A Widex 25 hearing aid from the 1950's made in Denmark. Brown and gold metallic casing with a volume control dial and an on/off switch. The curly wire runs to a circular outer disc. Although not present the disc would normally connect to an ear mould which is individually fitted to the wearer. The item comes in a soft leather case."DENMARK" inscribed on gold front. "WIDEX 25" inscribed on back. "WIDEX" on inside cover of case. "W" on outside cover of case device, hearing aid, loss, hard of hearing, deaf children australia, victorian school for deaf children, vsdc, denmark, widex -
Deaf Children Australia
Postcard, N.J.Caire, Indian Club Exercises, 1909?
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...B&W photograph by N.J.Caire, on a postcard, of the girls' Indian Club exercises, at the VDDI On Front of postcard: "VICTORIAN DEAF & DUMB INSTITUTION, ST. KILDA RD., MELBOURNE./Indian Club Exercises/N.J.CAIRE, Photo, 4 Darling Street, South Yarra, Victoria." deaf children australia, victorian school for deaf children, educaion, pupils, gymnastic class, indian club exercises -
Deaf Children Australia
Folder, Investigation Committee reports regarding future and policy for St Kilda rd policy, 1970-1973, started in 1970?
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...Sitting on a prime piece of real estate, over time there have been discussions on the best use of the site. Whilst there is no longer any suggestion of selling the site, it's ongoing development is still being discussed. Serious consideration was given to selling the St. Kilda Rd property to developers and changing sites. No indication is given for the rejection of this proposal, possibly in Board minutes of the time. This provides an insight into the pressures in the 1970s to sell the current site. A black foolscrap folder containing typed minutes of meetings of the Investigation Committee which was set up to investigate proposals which had been suggested regarding a future land policy. The meetings were held between 1970 and 1973. On front label: "MINITUES -/INVESTIGATION COMMITTEE/P.I.P." handwritten deaf children australia, dca, victorian school for deaf children, vsdc, st. kilda rd, the bluestone building -
Kew Historical Society Inc
Print - 'Monnington', Adeney Avenue, Trompf, 1977
... Junior School for Deaf Children, the Monnington Centre... it functioned as a Special Education Centre for deaf/blind children... Junior School for Deaf Children, the Monnington Centre ...In the mid 1960s, the Monnington Special Education Centre was established at 15 Adeney Avenue as an offshoot to 'Glendonald' in Marshall Avenue. In 1988, the amalgamation of Princess Elizabeth Junior School for Deaf Children, the Monnington Centre and Carronbank School for Deaf Blind Students allowed the Victorian Government to sell each of the sites. Monnington [Adeney Avenue, Kew] reverted to private ownership, while Glendonald and Carronbank in Marshall Avenue were demolished and subdivided. The donor, Mr Murray Osler, was Principal of the Monnington Special Education Centre in Adeney Avenue (Kew) from 1976. This photo, and an accompanying drawing of 'Carronbank' are important primary resources for the history of the delivery of education to and for deaf-blind children in Victoria.Gift of Murray Osler, 2021This limited and numbered print [number 10/100], framed under perspex, is of Monnington in Adeney Avenue, Kew when it functioned as a Special Education Centre for deaf/blind children during the 1960s to the 1990s. . "Monnington Special Ed. Centre / 60s-90s / (Parent Guidance for Deaf/Blind Ch. / Adeney Ave, Kew / Murray Osler / Principal 76-80s"schools -- kew (vic.), mornington -- adeney avenue -
Federation University Historical Collection
Book, Education Gazette, 1940s, 1940s
... deaf children... teachers' college art collections deaf children physical education ...Victorian Education Gazettes were sent to each Victorian school for the use of teachers. 10 black bound books with red spine. They are bound education gazettes from the 1940seducation gazette, teaching, drawing for secondary school, first aid, king's birthday, pre-nursing, gallipoli legion of anzacs, scholarships, creswick school of forestry, swimming, swimming and life-saving return, accomodation for teachers, ballarat teachers' college, chemistry experiments, war relief appeal, needlework, harold herbert obituary, drawing, school plantations, forest week, gould league, heavy colds - exclusion, pioneer's day, school gardens, scrap rubber, bogong, high school histories, melbourne teachers' college art collections, deaf children, physical education, education -
Deaf Children Australia
Book, Endowment Book 1873 - 1920
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...Created by the Victorian Deaf & Dumb Institution, this is a record of the estates, bequests, bonds and insurance policies of the VD&DI from 1873 to 1920This is a record of how the VD&DI obtained funds from various sources.Brown leather bound book with red leather on spine under name with marbelled facing pages on front and back covers. Pages are laid out in ledger format and detail estates, bequests, bonds and insurance policies of the V.D.&D.I.Spine: "ENDOWMENT BOOK" in gold stampingdeaf children australia, deaf education, endowment book -
Deaf Children Australia
Book, Monthly Accounts V.D.& D.I
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven cover with tan leather trimming containing the handwritten accounts for the Victorian Deaf and Dumb Institution (V.D.&D.I.) from September 1945 to June 1954Spine: "MONTHLY ACCOUNTS" in gold lettering on red background "V.D.&D.I."in gold lettering on black backgrounddeaf children australia, deaf education, financial accounts -
Deaf Children Australia
Book, Ledger
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven cover, tan leather on corners and spine, hardback book with alphabetical index pages in front and Accounts pages following. Contains Accounts of the Victorian Deaf and Dumb Institution from April 1952 to June 1958Spine: "LEDGER" with decoration in gold on red background. Decorative embossing on tan leather on coversdeaf children australia, deaf education, financial accounts -
Deaf Children Australia
Book, Journal
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven cover with tan leather on corners and spine, hardback account book with handwritten entries. Contains Treasurers' Statement of Accounts for the V.D.&D.I. from October 1939 to September 1956Spine: "JOURNAL" with decorations in gold lettering on red background.deaf children australia, deaf education, financial accounts, journal -
Deaf Children Australia
Book, Journal
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven cover with tan leather on corners and spine, hardback account book with handwritten entries. Contains Treasurers' Statement of Accounts for the V.D.&D.I. from July 1959 to July 1977Spine: "JOURNAL" with decorations in gold lettering on red background.deaf children australia, deaf education, financial accounts, journal -
Deaf Children Australia
Book, Investments Ledger
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven cover with tan leather corners and spine. Hardback account book with alphabetical index in front and accounts pages following with handwritten entries detailing investments of the V.D.&D.I. from Jarch 1952 to Jan 1989Spine: "LEDGER" in gold lettering on red background "INVESTMENT LEDGER" on dynamo tape stuck on spinedeaf children australia, deaf education, financial accounts, investments -
Deaf Children Australia
Book, Finance Sub-Committee minutes 17/7/52
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green cardboard ruled blank book with orange woven tape spine containing handwritten minutes of the Financh Sub-committee of the VSCD from July 1952- . Last entry March 1957. Kindergarten sub-committee minutes included.deaf children australia, deaf education, minutes of meeting -
Deaf Children Australia
Book, Journal - Monthly Financial Statements
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven covers with tan leather corners and cover of spine, hardback account with handwritten entries containing the Monthly Financial statements of the Victorian Deaf & Dumb Institution from May 1940-March 1951Spine: "JOURNAL" and decoration in gold lettering on red backgrounddeaf children australia, deaf education, financial accounts, journal -
Deaf Children Australia
Book, Ledger
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The financial records provide an insight into what is required to be considered at the time, from building expenses, wages and salaries, food to boot repairs. They show how funds are raised and the expenses.Green woven cover with tan leather at corners and over spine harback blank ledger book with alphabetical index in front and ledger pages following with handwritten entriesSpine: "LEDGER" in gold lettering on red backgrounddeaf children australia, deaf education, financial accounts, ledger -
Deaf Children Australia
Book, Municipal Council Subscriptions
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The Registers document where children came from, their family details and medical information, all relating to the time they were admitted and reflect the society of the time.Green woven cover with red leather over spine and corners, bound book containing ledger pages with handwritten entries. Lists donations from Shires, Boroughs, Towns, Cities and Masonic Lodges from 1913 to 1957.Spine: "MUNICIPAL COUNCIL SUBSCRIPTIONS" in gold letteringdeaf children australia, deaf education, donations, municipal councils -
Deaf Children Australia
Book, Salaries and Wages V.D.&D.I
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The Registers document where children came from, their family details and medical information, all relating to the time they were admitted and reflect the society of the time.Green woven cover with tan leather over spine and corners bound book containing printed accounts pages with handwritten entries listing the salaries and wages of the Victorian Deaf & Dumb Institution (V.D.&D.I) from 1938 to 1946.Spine: "SALARIES/AND/WAGES" "V.D.&D.I." in gold lettering on red and black background respectively.deaf children australia, deaf education, salaries, wages -
Deaf Children Australia
Book, Salaries and Wages V.D.&D.I
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The Registers document where children came from, their family details and medical information, all relating to the time they were admitted and reflect the society of the time.Green woven cover with tan leather over spine and corners bound book containing printed accounts pages with handwritten entries listing the salaries and wages of the Victorian Deaf & Dumb Institution (V.D.&D.I) from 1946 to 1951.Spine: "SALARIES/AND/WAGES" in gold lettering on red background "V.D.&D.I." in gold lettering on black background. Decorative printing on leather coverdeaf children australia, deaf education, salaries, wages -
Deaf Children Australia
Book, Cash Book
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The Registers document where children came from, their family details and medical information, all relating to the time they were admitted and reflect the society of the time.Green woven cover with tan leather over spine and corners bound book containing printed account pages with handwritten entries of receipts and expenses from December 1967 to January 1971 of the Victorian Deaf & Dumb Institution (V.D.&D.I.)Spine: "C B/1967/DECEMBER/to/1971/JANUARY" handwritten in inkdeaf children australia, deaf education, cash book, receipts, expenses -
Deaf Children Australia
Book, Cash Book
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The financial information relating to the Victorian Deaf & Dumb Institution has been kept in ledgers, journal, monthly accounts and Minutes of the Financial Sub-Committee. The funds available and the expenses of running an educational and boarding school are documented in detail.The Registers document where children came from, their family details and medical information, all relating to the time they were admitted and reflect the society of the time.Green woven cover with tan leather over spine and corners bound book containing printed account pages with handwritten entries of receipts and expenses from February 1971 to June 1974 of the Victorian Deaf & Dumb Institution (V.D.&D.I.)Spine: "1971/TO/1974" handwritten in inkdeaf children australia, deaf education, cash book, receipts, expenses -
Deaf Children Australia
Hearing Aid, Rexton, Rexton Model Super Master - Hearing Aid
... deaf children australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. Part of the development of hearing aids Gold and burgundy metal casing, with an ear piece attached by wire. This is a body-worn hearing aid, with user instruction booklet. Manufactured by Rexton a subsidiary of Siemens."647 IV" on bottom of case, along with controls, "H N L" "M T O" and a numbered dial deaf children australia, hearing aid, rexton, siemens -
Deaf Children Australia
Hearing Aid, Sonotone Carbon Hearing Aid, "1930s"
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The first electrical hearing aids were carbon and were made possible by the invention of the carbon microphone and were made between 1900 and 1939. Carbon, which can be made to amplify electrical current, was used to provide some amplification prior to the invention of vacuum tubes. Later models often came with mechanical (carbon) amplifiers to try to boost the amount of amplification. The carbon microphone was originally invented for use in the telephone and had the properties of being able to modulate current. It is this property that made it useful in the early electrical hearing aids. An example of a carbon hearing aid. This has an imitation tortoise shell casing. Round dark red and black imitation tortoise shell carbon hearing aid with clip for attaching to clothing, and a slide for adjusting the sound (?) a cord split between a plug and a speaker (?)."SONOTONE/REG U.S.P.A./292392/MADE IN U.S.A./ELMSFORD, N.Y." on bottom of unit. "SONOTONE" on plug. "PAT RE 21030" on speaker? deaf children australia, hearing aid, sonotone -
Deaf Children Australia
Hearing Aid, Hearing Aid from Myer Hearing Service
... Deaf Children Australia...Deaf Children Australia 597 St Kilda Road Melbourne ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids. Tan plastic case hearing aid, with wire, ear piece and ear mold with metal clip. Made in England and sold by Myer Hearing Service. "MYER/HEARING SERVICE" engraved in gold on case. "MADE IN ENGLAND" on bottom of case. deaf children australia, hearing aid, myer hearing service -
Deaf Children Australia
Zephyr Hearing Aid, Estimated date: early 1950s
... Deaf Children Australia, hearing aid, Zephyr hearing aid...Deaf Children Australia 597 St Kilda Road Melbourne ...The first all transistor hearing aids appeared in 1953. They were created to replace vacuum tubes; they were small, required less battery power and had less distortion and heat than their predecessor. The vacuum tubes were typically hot and fragile, so the transistor was the ideal replacement. The size of these transistors led to developments in miniature, carbon microphones. These microphones could be mounted on various items. There were body hearing aids where the earpiece was connected to the hearing aid and battery pack worn on the body. Ear level hearing aids consisted of eyeglass, behind the ear (BTE), in the ear (ITE), and in the canal (ITC, CIC) hearing aids.Cream plastic hearing aid with metal back. Takes 3 batteries and there is a piece of paper in the battery case advising 'CAUTION'. Two round knobs on top, 'ON/OFF' and the other I assume is Volume. There is a plastic tag for attaching to a button (probably), headphone sockets. The front is metal lacework with a scrolled 'Z'"Z" on front. "ZEPHYR/HEARING AID/2546" on back. "U C"/"M"/"7777" on inside battery case.deaf children australia, hearing aid, zephyr hearing aid -
Deaf Children Australia
Sonotone 700 Hearing Aid, Sonotone, 1946
... Deaf Children Australia, hearing aid, Sonotone hearing aid...Deaf Children Australia 597 St Kilda Road Melbourne ...Although Lee DeForest invented the triode vacuum in 1906, it was not employed in hearing aids until 1921. The first hearing aid using a vacuum tube was purported to have been made by Earl C. Hanson. He called his hearing aid the Vactuphone. It used one small peanut tube (below right) to amplify the output of a carbon hearing aid. The Globe Hearing Aid Company and Western Electric collaborated to manufacture the Vactuphone. By the early 1940s, Raytheon had developed miniature vacuum tubes. It was these miniature vacuum tubes that made body-worn hearing aids a reality. Unfortunately, the power requirements of these aids made it necessary to use two relatively large batteries—an "A" battery to power the filaments of the vacuum tubes and a "B" battery to supply the high-voltage for the plate current. The batteries were worn external to the hearing aid itself and the name "Two-piece" hearing aid was used to describe them. Until about 1945 "Two-piece" hearing aids were the norm. However, improved vacuum tube design reduced current requirements. As a result, battery manufacturers were able to reduce the size of the batteries used in hearing aids. At the same time, electronic components were also being miniaturized. This allowed the hearing aid manufacturers to design hearing aids with internal batteries. After 1945, these "One-piece" hearing aids quickly replaced the more cumbersome "Two-piece" hearing aids. With continuing improvements in both batteries and components, hearing aids continued to reduce in size until 1953 when the vacuum tube was suddenly supplanted by the transistor.Fawn plastic hearing aid with metal clip on back and wires leading from the bottom. Made in the USA, sold by Angus & Coote as the Sole Australian Agents. The Model is the Sonotone 700. Two dials one on each of the top corners."ANGUS & COOTE/Sole Australian/Agents/C D C" Printed in black on the back, top left hand corner. "SONOTONE/700/SERIAL NO/843218/MAD IN U.S.A./SEE PATENT NOTICE/IN INSTRUCTION BOOK" imprinted on back, centre middle.deaf children australia, hearing aid, sonotone hearing aid, sonotone 700, angus & coote -
Deaf Children Australia
Bottle, Felton Grimwade & Duerdins Ltd, Bottle of Potassium Permanganate, Using the company name, it dates between 1929 and the early 1950s
... deaf children australia,...Deaf Children Australia 597 St Kilda Road Melbourne ..."Potassium permanganate is an inorganic chemical compound with the chemical formula KMnO4. It is a salt consisting of K+ and MnO−4 ions. Formerly known as permanganate of potash or Condy's crystals, it is a strong oxidizing agent. It dissolves in water to give intensely pink or purple solutions, the evaporation of which leaves prismatic purplish-black glistening crystals. (Which is what in contained in the bottle.) As an oxidant, potassium permanganate can act as an antiseptic. For example, dilute solutions are used to treat canker sores (ulcers), disinfectant for the hands and treatment for mild pompholyx, dermatitis, and fungal infections of the hands or feet. Potassium permanganate is used extensively in the water treatment industry. Historically it was used to disinfect drinking water. (From Wikipedia)" Eight sided, rectangular, clear glass bottle containing grey filings. It is closed with a cork, which is probably broken off. Label indicates Potassium Permanagate manufactured by Felton, Grimwade & Duerdins Ltd. "POTASSI PERMANGANATE."/"POISON"/"Felton Grimwade & Duerdins Ltd." on label on front. There are numbers in the glass on the bottom: "1608 M" and small difficult to read letters. deaf children australia,, chemical, antiseptic, potassium permanganate, water purifier, felton grimwade & duerdins ltd, bottle