This item relates to methods of reproducing photos on all forms of material in an era of physical offset printing.The offset method is being replaced by digital transfer direct to the final product,(paper or other porous and non porous surfaces). Newspapers and other "paper" information publications are still producing "hard copies" but these are slowly being phased out. This item was used Circa 1920s in the peek period of paper based media. From the 1940s radio and then television stepped into the mass media revolution.This book was produced when all printing, Government and private enterprise, was using the "off set" method. This method was used to a great degree in all schools within the Kiewa Valley. It was in an era before "photo-copying machines" were available. This was a period when printing inks for larger printing machines had to be purchased from specialised outlets and printing presses required to be washed after each "run" of printing before the next plate(aluminium) could be fastened onto the "off sett" machinery. Heat infusion now used in large machines and domestic printers has superseded this task. Faded green cloth covered book with green papered front and back sleeve pages.Photos and sketches are throughout the book. Gloss paper used from page 1 one to page 400. Pages 401 to page 432 are not gloss paper. The type of paper varies throughout the book until final advertisement and index pages, from page 833 to page 846, are on gloss paperThe spine cover is badly worn and wording is faded. Front cover has"Commercial Engraving And Printing" Author and publisher details written by Charles W. Hackleman. Published by Commercial Engraving Publishing Company, "A Manual of Practical Instruction and Reference Covering" Commercial Illustrating and Printing by all Processes.technical book, reference for engraving and printing

Twenty-two young New Zealand soldiers were posted to a clandestine intelligence unit in Melbourne called the Allied Intelligence Bureau. Their task was to undertake espionage and sabotage lines of communication, train natives as soldiers for local resistance and set up a radio link back to Australia. This is the account of the experiences of one soldier’s operation in Borneo – and is an account of their divine protection. Soft cover 174 pageSigned by author.ww2, australian special operations, nz special forces in ww2

Popularly known today as Z Special Unit, or by the wartime cover names of Inter-Allied Services Department (ISD) and Services Reconnaissance Department (SRD), Special Operations Australia (SOA) was the Special Operations component of the US-led Allied Intelligence Bureau in the Pacific Theatre during the Second World War. From the secret files of Z Special Unit, and the third in a set of five volumes, Volume 3 - Communications describes the communications links and equipment which were the lifeline for "Z" Operatives in the field. From "Z's" early days relying on Dutch military communications stations in Melbourne and Darwin to the establishment of dedicated "Z" communications stations in Darwin, Morotai and Labuan, Vol 3 provides the only comprehensive history of these sites ever committed to paper. Radio and Special Forces enthusiasts will be agog at the appendices in this volume, which not only include copies of the actual operating instructions and technical manuals for much of the specialist SOE communications hardware used by "Z" during the war, but also the once-top secret SOE ciphers and codes used by Z parties in the field. The Official History of Special Operations Australia, Volume 3 - Communications is a unique record of one of the most important aspects of Second World War Special Operations.australian special operations, special forces, world war ii

Founded in1903 when William E.Sessions and some of his family took over E.N.Welch Co. in Forestville. E.N.Welch Manufacturing Company used a local foundry to produce their castings. The foundry owner's son,William E.Sessions, took an interest in horology and ,along with other Sessions family members, bought controlling interest in the E.N.Welch Company., which was a joint stock corporation formed July 6th 1864 to succeed an older private firm who made clocks under the name of E.N.Welch. Elisha N. Welch (1809-1887),had been making clocks at a factory on East Main Street Forestville Conneticut after taking over J.C.Browns bankrupt business around 1856.Under William Sessions management the firm produced all components of their clocks including movements,cases,dials,artworks and castings.In 1930 the company expanded to produce electric clocks,timers for radios,televisions and other devices as well as their traditional brass mechanicial movements.In 1956 Sessions was absorbed by another company while retaining the name and in 1969 the business went into liquidation.Clock is made of black wood with Corinthian style columns,three set on each front corner. These are black metal, and show remains of gilt paint on top of columns.On the base of the clock is carved decoration with similar carvings on each of the four corners of square around clock face.Dial is cream with Roman numerals. the hands are set in gilt centre piece.Below the 12 is the name WELCH.The glass dial cover is edged in gilt. It is spring wound and has settings-day/night,1/2 hour strike(hour on gong -1/2 0n bell), Cathederal Gong, turn back hands. THE SESSIONS CLOCK COMPANY. Successors to the E.N.WELCH MANUFACTURING COMPANY.Forestville.Conneticut.United States of America.mantle clock, the sessions clock company, forestville conneticut united states of america

This unit was designed and manufactured in a factory where many local people of Bacchus Marsh worked. Ref. Historical Notes-Significance Assessment Study ( October 2008)Bakelite tabletop radio,small box,camel-coloured leatherette covered,glass front,three dials,electrical cord,4 vlave reflex super heterodyne, cord attached, incription on set reads "MARSHMAN MUSIC MASTER".Maker's mark in blue print "MARSHMAN MUSIC MASTER" (Inscription on the central area of the glass front of the unit) "BROADCAST" is printed in cream twice in the area of the radio Frequency Band listings.electrical, , bacchus marsh, bakelite, radiogram, bob butler, post war invention, leatherette, technology, 1950 s, small scale radio, heterodyne, cabinet radio, arbee supply c0, civilian radio, manufacturer s drawings, wiring layout, console model

Small rectangle box (cigar box), with wooden roll, covered in copper wire,brass bar, with wooden peg which meets copper wire on roll, 2 metal pegs on outside of box, which could attach to power leads (could be crystal set) or something to do with early morse code transmission. There is a lever that can be disconnected from an electrical force, that could produce a morse code"EARTH" & "ARIEL" hand carved on one end "PHONES" (hard to decifier) on other endballarat, radio, inventions, inventor, ariel, crystal set, electricity, electronics

Information from Norman F. Dalton: Ballarat had a reticulated DC supply in the early part of last century and in 1905 had sufficient generating capacity to enable the trams to be changed from horse drawn to DC electricity. The use of electricity increased with the main power station located on Wendouree Parade, near Webster Street, under the ownership of The Electric Supply Company of Victoria. AC generating plant was installed in 1925 and conversion to AC proceeded. In 1934 the company was taken over by the State Electricity Commission Victoria (SECV) and more AC generation was installed and the changeover of customers was accelerated. This is around the time that the Synchronome Frequency Checking Mast Clock was installed at the Wendouree Parade Power Station. The SECV Annual Report of 1921 states: ::Section 11 of the act directed the COmmission to enquire into the question of securing the adoption of such standards of plant and equipment of a system, frequency and pressure for the generation and distribution of electricity as will admit of the efficient interconnection of undertakings throughout the State. In 1934 when the SECV took over the Ballarat operations the question of linking with the State grid had been a planned operation for some years but due to financial considerations had hindered it and in fact would continue to do so for a further 10 years. So while the need for close frequency control for interconnection was hardly an issue, the need to keep electric clocks correct was important, particularly as this item was a frequent sales point to cover the inconvenience and sometimes expense of converting from DC to AC. The clock is a very accurate pendulum clock with provision for varying effective length during operation for precise time regulation. There are two normal time dials and one is controlled by the pendulum and the other is operated by the system frequency. When the clock was in use it was installed by the MEter and Tests Laboratory and the time was checked daily by radio time signals. The two dials were repeated in the operators control panel in the Power Station. A maximum deviation between the two dials was set in the operating instructions (eg 5 seconds) and the operator would correct this when necessary by remote manual alteration of the turbine governor set point. The clock was used to drive and regulate a system of "slave" clocks which were used to display the time in various locations around the power station. A slave clock is a simple clock which is driven by a small electric motor, its accuracy is regulated by the master clock every 30 seconds to ensure that it and all the other slave clocks in the station are on exactly the right time; slave clocks were placed in various locations, from common rooms to workshops. A master clock could potentially run thousands of slave clocks at one plant. The clock also contains a rectifier. A rectifier is a device that is used to convert AC power to more stable DC current.Two clocks in a timber case. Both are electric, one is powered by the main pendulum mechanism, the other is a self contained electric clock. The main mechanism is of the gravity arm and roller type, which sends an impulse to the slave clocks every 30 seconds. The This Synchronome Frequency Checking Master Clock was used at the Ballarat Power Station. Below the main section of the case is a smaller cabinet containing a rectifier to provide consistent DC power for the clock. The rectifier was made by the Victorian company Hilco, which was located in Burwood. There is a high chance this is not the original rectifier from this clock as there appears to be brackets to hold a larger device in the space the rectifier occupies.Front below main clock face on front of case: "Patented Sychronome Brisbane" Lower left-hand clock face: "Frequency time" Lower right-hand clock face: "Standard Seconds" Synchronous electric clock mechanism on door (Frequency time clock): >200/250 V. 50~ >"Synchronomains" Made in England >Direction indicator for clock starting switch >"To start move lever in direction of arrow and release" >"Patent applied for" Mechanism for "standard seconds" clock: >"English Made" >"Patented" >Serial number "321" >0 above right-hand pillar on front-plate Mechanism for "standard seconds" clock: >"English Made" >"Patented" >Serial number "321" >0 above right-hand pillar on front-plate Mechanism for main clock face: >"English Made" >"Patented" >Serial number "8751" >0 above right-hand pillar on front-plate Inside case, back panel, top enamel plate: >Seconds Battery + Pos. > Battery Common or - Neg. >1/2 min dials Inside case, back panel, bottom enamel plate: external seconds dial Inside case, right hand side, electrical knobs: two switches, both "A.C. mains" Pendulum rod, below suspension spring: Serial number (?) 0000005 Rectifier in bottom cabinet: >"Hilco Rectifier" >"A.C. Volts 230/240" >"Model 1060/S" >"A.C. Amperes" >"Serial No. 1060/S >"Phases 1" >"D.C. Volts 6" >"C.P.S. 50" >"D.C. Amperes 1" >"Made in Australia by Hilco Transformers McIntyre St., Burwood, Victoria." Bakelite electrical plug: makers mark Lower cabinet, RH side panel, pressed tin plate: "AC" (upside down) Brass speed adjustment, outer right RH side: "S" and "F" Ivory and wood pendulum beat ruler: >Ruler, with 0 in centre and numbers 1-5 in ascending order from centre on left and right. > "Synchronome Patent." Steel plate, back panel, inside case, right hand side: >N R A" (descending) >"2191" serial number/part number Face of main clock: "Synchronome Electric" synchronome frequency checking master clock, electricity, state electricity commission, wendouree parade power station, secv, clock, time, pendulum, electric supply company of victoria, norman f. dalton, ballarat power station, rectifier, slave clock

The set consisted of a key battery and buzzer it was used for training potential radio operators in the Morse code. It was manufactured by blue point in the 1950s. The company was founded in the Sydney suburb of Erksville in 1936 by a German immigrant, Frederick Boyd Dirks who named his company F Dirks. The company produced Bakelite products such as ashtrays single strip heaters, and Morse key components, In 1946 the company named was changed to Blue Point products Pty Ltd. The name was inspired by the name “Blau Punkt” a German electrical supplier. in 1973 the company was purchased by Gerard Industries which was known for its line o Clipsal products, An item made in Australia for training purposes of new radio operators and is significant in that it is part of Australia's social history and shows the development of Australian electrical manufacturing. Australian blue point telegraph practice /training set XX20A circa 1950 Bakelite, stamped XX20A under, three terminals - two marked "+" and "-".flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village