.1 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Large Electric Generators and Motors - Continuous Maximum Rating" - C36-1927, May 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .2 - Book - 48 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Alternators of the Steam Driven Type" - C38-1927 - December 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .3 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electricity Meters" C39-1927, August 1927. .4 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Pressboard for Electrical Purposes" - C40-1927, January 1927. .5 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Hard Drawn copper stranded circular conductors for overhead power transmission purposes" C41-1930, August 1927, with a green label dated October 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .6 - Book - 48 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "for Indicating Ammeters, Voltmeters, wattmeters, frequency and power factor meters" - C42-1927 - December 1927, with a green label dated October 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .7 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Instrument Transformers" - C45-1928, June 1928. .8 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Liquid Starters for Electric Motors" C46-1927, December 1927. .9 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Star Delta switch starters for Electric Motors" C47-1927, December 1927. .10 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Multiple switch starters for Electric Motors" C48-1927, December 1927. On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" trams, tramways, power station, standards, materials, electrical systems

Photograph shows 7 trams lined up at the front of the new shed at Malvern depot during a strike or stopage. Some have the wartime painted white strips on the them. Trams include W2s 345. ?, 312, 542?, W5 816, w2s 601 and 300. Though to be an Age photograph.Yields information about Malvern depot c1945/46Black and white photo with notes on the rear.On rear in pencil "Idle trams in Malvern depot yesterday afternoon", three date stamps and "Melb trams"tramcars, tramways, malvern depot, tram 345, tram 312, tram 542, tram 816, tram 601, tram 300, w2 class, w5 class

Folding blue card. Membership card RSSILA -Geelong Sub Branch. Inside left panel has details of 1944 Geelong sub branch committee. The member's number 1269. Date stamp 1944. Inside right panel has meeting dates for 1944. Front has "Geelong Rssila" and the RSL baded motif.membership, rsl, geelong

Provides an association with an event - the reopening of the Ballarat Tramways by the BTPS in 1975. Congratulatory message from one of the first tramway museums in the world. Shows the nature of telegrams.Telegram - yellow paper, with "Australian Post Office Telegram" printed on the edges both side from the Tramway Museum Society (TMS) (Crich) to the BTPS, congratulations on the formal re-opening of the Ballarat Tramways. Date stamped 31 Jan 1975 by the Ballarat Post Office.trams, tramways, btps, reopening, celebrations, enthusiasts

The Junction Dam and Clover Dam Power Station, stages of the Kiewa Hydro-Electric Scheme, were needed to meet the increased power demands of the wartime industry in Victoria. Clover added 26 megawatts to the grid. Junction Dam was completed and ready to hold water by September 1943, but was emptied in December 1943 and not filled again until May 1944. Construction of Clover Power Station commenced in July 1941 and both turbines were in service by May 1945.Clover Power Station and Junction Dam were part of the Kiewa Hydro Electric Scheme constructed by the State Electricity Commission of Victoria.Set of 22 black and white photographs taken by the official SECV photographer who gave each photo a number prefixed by K (for Kiewa) K60 -no date- A bridge and entrance to tunnel K519 -no date- Welding steel lining in the tunnel K531 –no date- Construction on the Kiewa Scheme (tunnel in background K821 – no date- Bogong Village, early days K928 -15 Oct 1942- Construction Clover Power Station K947 -26 Oct 1942- Construction Clover Power Station K948 -26 Oct 1942- Construction Clover Power Station K949- 26 Oct 1942- Clover Camp in background K950 -26 Oct 1942- Construction Clover Power Station K955 -27 Oct 1942- Constructing the bridge at Clover K1102 -7 April 1943- Inlet pipe to power station K1179 –no date- Clover Power Station K1187 – no date- Clover Power Station K1189 -24 June 1943- Part of the spiral casing 1199 -7 July 1943- Clover Power Station K1201 -7 July 1943- Clover Power Station K1231 -26 July 1943- Gantry crane for Clover Power Station K1308 -6 Sept 1943- Spiral casing K1334 -6 Oct 1943- Lake Guy. Bogong Village in background K1342 -29 Oct 1943- Power station under construction K1365 -19 Nov 1943- Power station under construction K1366 -19 Nov 1943- Gantry crane for Clover Power Station On the back- each photograph has a handwritten reference number starting with K and the date stamped or written (see above)secv; kiewa hydro electric scheme; official photographer; junction dam; clover power station; bogong;

Catalogue No. 206 of the J. G. Brill Co. of Philadelphia PA, titled "Brill Trucks" on front cover and "City and Interurban Trucks" on page 1. Comprises: Card cover very light grey on outside, grey inside which is a larger size than that of the rest of the book. Has the names of the J. G. Brill associated companies (American Car Company of St. Louis, G. C. Kuhlman Car Co. of Cleveland Ohio, Wason Manufacturing Company of Springfield, Massachusetts and Compagnie J. G. Brill, Paris France) as well. On the inside of the front cover and on the inside back cover are patterns involving the Brill logo. To the printed catalogue is a matching out 4pp again with the same Brill logos. This sheet is the same size as the text pages. Forty page printed text on a heavy gloss manila colour art paper. Front cover gives details of Brill's office addresses, and agents, including the Australasian agent - Noyes Brothers. Page 3 gives an introduction to the quality of Brill trucks and page 39 gives an index to the various trucks and components. Each truck type has a photograph, parts list and dimension details. Trucks covered are: Radiax, 21E, 22, 22E, 27E, 27F, 27G, 27MCB, 39E, 50E. Equipment detailed are the Half-Ball brake hanger, oil retaining center bearing, standard journal (axle) box, solid forged side frames and axle data. Page 38 details the information to be provided when ordering trucks. Image of each sheet added 25/3/2015.On front cover, date stamp of ESCo, Ballarat "1 Apr 1914". The printers signature is shown on page 40.trams, tramways, 21e trucks, 22e trucks, j. c. brill co., bogies, interurban

Unusually heavy snow in the side garden of the old Police Station/House. Building constructed by Rennie (rare example of his work).Rare photo of old police station/house in Scott St, under snow. Building is representative of Rennie's construction style.Snow in front yard of Old Police House/Station in Scott St, 1951Reverse is stamped Police Station Buninyong, date stamped 19 Jul 1951, handwritten inscription SNOWING AT BUNINYONGbuninyong, police station, garden, snow, scott st, police house, rennie

Plans and documents prepared by George Duncan for the Melbourne Tramways Trust showing details of the track construction, drainage and costs for the construction of the Melbourne cable tram and horse tram system for the Melbourne and Tramway Omnibus Co. Part 1 - track cross sections for both cable and horse trams and various rail weights - lbs/yard part 2 - details costs and mileages for each liine, report from George Duncan and remnant part of a printed map missing the lower half. part 3 - drainage report detailing the works and cost for each line. part 4 - continuation of drainage report - and last part of the book Map printed on cloth - blue print - showing the various lines. Note the Windsor to St Kilda line shown as a horse tram line, but was built as a cable line - the last to be opened.Yields information about the construction of the cable tram system by the Melbourne Tramway TrustFolder - heavy card leather covered covers with gold lines around the edges and gold blocked title. Has marbled glued end papers, containing 9 cloth backed blue print drawings, 22 printed sheets and two foldout maps. The lower half of the first fold out map has been torn out and lost. The second fold out map, a cloth backed blue print.Date stamped in two places with "The Melbourne Tramways Trust Engineers 9 Mar 89" (1889), in two places.tramways, trams, cable trams, mtt, mtoco, melbourne tramway trust, construction, drainage, maps, george duncan, track work, costs

Colour postcard, with two cable tram sets in Queens Parade Clifton Hil and the buildings on with side of the very wide roadway. Yields information about the view along Queens Parade Clifton Hill.Postcard - colour with divided back, used with a Victorian 1d stamp on the rear.Handwritten note and date stamp of the Clifton Hill Post Office. Has a Christmas Greetings on the rear for a person in Sebastopol.trams, tramways, cable trams, clfiton hill, queens parade

Black and white print of the SW2 class No. 432 running at Special tram tour at South Melbourne loop. One print has a hand date stamp of 6/10/1975 on rear.Yields information about the South Melbourne Football ground loop.Set of two Black and White photographs - printed on plain paper with photographers stamp and notes on rear.Has stamp of David Menzies on rear. and in ink details of photo.tramways, trams, mmtb, sw2 class, tram 432, south melbourne football ground, south melbourne loop, tours

Colour photograph. People gathered playing instruments, Man on guitar, man playing harmonica, man standing with banjo, man playing accordion, man with concertina, man playing another accordion. Night time. Date stamped '95 12 29 bottom right corner on front.photo, group, musicians

Bendigo telephone and postal exchange staff circa 1912Bendigo Telephone Exchange & Postal Staff, three photographs circa, 1912. Three B&W photographs of the staff of the Bendigo Telephone Exchange. Date stamped on rear of mounts as 2 Dec 1912. Pl return to B M Callinan, 15 Kendari Avenue 3104, 8595199Photographer - W. H. Robinson, Bendigo bendigo telephone and postal exchange staff circa 1912

Refer Cat No 4783.Identity card civilian, OHMS FORM C.R.3, rectangular shape khaki colour, front has PO date stamp, all print in black stamped in purple, hand written in black pen, rear all print in black hand written in dark blue & black pen.Front has, “N19 - M25 - 15519 Oliver Foster Rosedale Rd St Ives”, stamped “PARRAMATTA”, rear signed by witness, “Amy Oliver Rosedale Rd St Ives”, signed by card holder, Oliver Foster Rosedale Rd ST Ives”cards, civilian identity

Yields information about the provision of the tramway management by the SEC and Mr. Les Denmead., Yields information about the provision of the tramway management by the SEC and Mr. Les Denmead.Carbon copy of a Memorandum dated 3/10/1962 to the Manager North Western Region (Bendigo) advising that the Ballarat Tramway Superintendent, Les Denmead will act in the position of Departmental Tramways Superintendent and will come to Melbourne as required. Sheet has rounded corners and date stamped 4 Oct. 1962.trams, tramways, personnel, management, ballarat, bendigo, tramway superintendent

One transparency on a Kodak Readymount mount, with dark blue border. Photo of Bendigo Trust No. 30 after repainting to the Bendigo trust colour scheme. Has a BCV Television roof ad. Has Fountain Plaza and Ezywalkin buildings in the background. Slide dated Dec. 1972.Information written on in blue ink and date stamped on purple ink. "Birney No. 30 restored to former livery at Charing Cross."tramways, trams, bendigo, charing cross, tram 30

A complimentary letter from a child of the Lardner Family that arrived at the depot (placed under the door) on 12 April 2000, with drawings and a note on computer printer paper with perforated holes on the sides. 1429.1 - Drawing of the depot building with tracks outside, with No. 6 road highlighted and with a note "best". Two people with bikes in from of the shed, shows sign and a tree. 1429.2 - two sheets of same computer paper, addressed "Dear the Tramline People" on one side, a sketch of tram 13, and two written notes, from the "Lardner family"BTM letter Date stamp and item no. - arrived at the depot 12 Apr 2000 and given the item No. "9136" in black ink.trams, tramways, children, btm, complimentary, drawings

.1 and .2 - set of two Agfa colour slides, blue/white plastic mount, photo by Keith Caldwell of track cleaning tram No. 6 at Haymarket roundabout, Flemington Road, Elizabeth St. 4/1964. .3 - Perutz grey plastic mount colour slide of No.6 at Haymarket Roundabout, 17.3.1966, in the afternoon. Has the Ampol building in the background.In ink "Melb #6 4-64" and in pencil "Service car 6 17.3.66" and has a date stamp with the same date.trams, tramways, track cleaner, work trams, haymarket, elizabeth st, flemington rd, tram 6

Thirteen typed copies of a letter in reference to the return of Share Certificates because of the Liquidation of the Company. Letter unsigned and undated. Typed on paper with Hanro letterhead. One copy is signed by W B H Neill and E F Granger and the third signature is unreadable and is date stamped 15 October 1929.hanro, clothing, share register

Catalogue card reads, 'Mayoral Ball, Graham Corr and wife'. (no date). Stamped on back of picture 'Peter Payens of Ringwood Studios'.

Yields information about the announcement of the SEC Decision to close both Ballarat and Bendigo and gives details regarding personnel and how it will be handled.., Yields information about the announcement of the SEC Decision to close both Ballarat and Bendigo and gives details regarding personnel and how it will be handled..Copy of a Memorandum sent by the Melbourne office, Engineer and Manager SEC to the Manager Ballarat and Bendigo branches, 1/2/1962, titled "Ballarat, Bendigo Tramways - Personnel", regarding closure, informing unions and personnel. Predicted towards the end of 1962. Will make endeavours to find the men suitable employment, but may not be at existing locations or wages. Notes the same as being applied to Geelong, Ballarat B power station, Geelong power station with ex-gratis payments based on years of service. Signed by K L MurrayDate stamped 2/2/62 and has file number in the top right hand corner in ink and notes re copies.trams, tramways, closure, staff, employment, sec, bendigo, ballarat, personnel, ballarat b power station, geelong

Yields information about Ballarat tram 29 when it was dressed for the Floral Festival and the launch of the tram and how it was used by a small photograph publisher for sales.Digital image from the Wal Jack Ballarat Album of a postcard featuring the 1939 Floral Tram, photograph at the depot, rendered in colour and positioned within an outline of a map of Australia. Wal's notes date it as 4-3-1939. Uses the same base photo similar to 1369, but without the motor bike in the rear. On the rear has a the stamp "L.W. Torr Best Street Bowen Hill, Brisbane Q" See image i2 for rear of photograph. See Reg Item 7000 for a hand coloured image.Stamped on the rear of the photograph "L.W. Torr Best Street Bowen Hills, Brisbane Q" and the date stamp "5 May 1939"trams, tramways, floral tram, decorated trams, depot, tram 29

The photograph shows at least 6 six trams at Eastern Park after a football match and the Garden St junction for the East line. Tram No. 5 with a destination of West Geelong is leaving the junction. Another tram is arriving with at least four parked on the Eastern Park line. Yields information about the use of trams after a football match in Geelong.Black and white photograph with some details on rear.In ink "Cr Ryrie & Garden Sts, this type of tramcar also in service 1947" and hand date stamp of "15 Sep 1923"tramways, trams, geelong, ryrie st, garden st, eastern park, football, tram 5

This book “The Job” is a novel written by Sinclair Lewis. It was first published in America in 1916 and in England in 1926. It is Lewis’ third book. There are 320 numbered pages, divided into three parts, each part is divided into chapters, which are in turn divided into sections. This particular book is one of a Collected Edition published in 1929. A note from the publisher included within the book states “It has been corrected in some small details but no revision or rewriting has been attempted by the author who wishes it to be made clear that it is an early and not a new work.” About SINCLAIR LEWIS (1885-1951) The author was born as Harry Sinclair Lewis in 1885 in Sauk Centre, Minnesota. He was renowned as an American novelist, playwright and short story writer. His first writings were romantic poems and short stories. Six of his novels were published by the time Lewis was 36. Lewis received the Nobel Prize for Literature in 1930 for his “vigorous and graphic art of description and his ability to create, with wit and humour, new types of characters." He was the first author from the United States to receive this award. Lewis graduated from university in 1907. He worked as a reporter and editor for several publications. He was a prolific writer, publishing dozens of works and numerous articles, and became popular for his satire. Lewis married and divorced twice and died alone from a heart attack due to advanced alcoholism) near Rome on 10th January 1951, aged 66. This book was part of a large group of books referred to as the Pattison Collection, which belonged to the Warrnambool Public Library, part of the Warrnambool Mechanics’ Institute. There is a remnant of the library’s label inside the back page of the book. About RALPH ERIC PATTISON and the ‘PATTISON COLLECTION’ The ‘Pattison Collection’ is a collection of books and records that was originally owned by the Warrnambool Mechanics’ Institute, founded in Warrnambool in 1853. By 1886 the Warrnambool Mechanics’ Institute (WMI) had grown to have a Library, Museum and Fine Arts Gallery, with a collection of “… choice productions of art, and valuable specimens in almost every branch and many wonderful national curiosities are now to be seen there, including historic relics of the town and district.” It later included a School of Design. Although it was very well patronised, the WMI was led to ask the City Council to take it over in 1911 due to lack of financial support. In 1935 Ralph Pattison was appointed as City Librarian to establish and organise the Warrnambool Public Library as it was then called. Ralph Eric Pattison was born in Rockhampton, Queensland, in 1891. He married Maude Swan from Warrnambool in 1920 and they set up home in Warrnambool. In 1935 when Pattison accepted the position as City Librarian for the Warrnambool City Council his huge challenge was to make a functional library within two rooms of the Mechanics’ Institute. He tirelessly cleaned, cleared and sorted a disarrayed collection of old books, jars of preserved specimens and other items reserved for exhibition in the city’s museum. He developed and updated the library with a wide variety of books for all tastes, including reference books for students; a difficult task to fulfil during the years following the Depression. He converted all of the lower areas of the building into a library, reference room and reading room for members and the public. The books were sorted and stored using a cataloguing and card index system that he had developed himself. He also prepared the upper floor of the building and established the Art Gallery and later the Museum, a place to exhibit the many old relics that had been stored for years for this purpose. One of the treasures he found was a beautiful ancient clock, which he repaired, restored and enjoyed using in his office during the years of his service there. Ralph Pattison was described as “a meticulous gentleman whose punctuality, floorless courtesy and distinctive neat dress were hallmarks of his character, and ‘his’ clock controlled his daily routine, and his opening and closing of the library’s large heavy doors to the minute.” Pattison took leave from 1942 to 1945 to serve in the Royal Australian Navy, Volunteer Reserve as Lieutenant. A few years later he converted one of the Museum’s rooms into a Children’s Library, stocking it with suitable books for the younger generation. This was an instant success. In the 1950’s he had the honour of being appointed to the Victorian Library Board and received more inspiration from the monthly conferences in Melbourne. He was sadly retired in 1959 after over 23 years of service, due to the fact that he had gone over the working age of council officers. However he continued to take a very keen interest in the continual development of the Library until his death in 1969. THE NEW WARRNAMBOOL LIBRARY When the WMI building was pulled down in 1963 a new civic building was erected on the site and the new Warrnambool Library, on behalf of the City Council, took over all the holdings of the WMI. At this time some of the items were separated and identified as the ‘Pattison Collection’, named after Pattison. Eventually the components of the WMI were distributed from the Warrnambool Library to various places, including the Art Gallery, Historical Society and Flagstaff Hill. Later some were even distributed to other regional branches of Corangamite Regional Library and passed to and fro. It is difficult now to trace just where all of the items have ended up. The books at Flagstaff Hill Maritime Village generally display stamps and markings from Pattison as well as a variety of other institutions including the Mechanics’ Institute itself. Lewis’s book is significant for its association with the writer, who was the first American to be awarded the Nobel Prize for Literature (1930). This book is significant for its connection with the Pattison Collection which, along with other items at Flagstaff Hill Maritime Village, was originally part of the Warrnambool Mechanics' Institute’s collection. The Warrnambool Mechanics’ Institute collection is primarily significant in its totality, rather than for the individual objects it contains. Its contents are highly representative of the development of Mechanics' Institute libraries across Australia, particularly Victoria. A diversity of publications and themes has been amassed, and these provide clues to our understanding of the nature of and changes in the reading habits of Victorians from the 1850s to the middle of the 20th century. The collection also highlights the Warrnambool community’s commitment to the Mechanics’ Institute, reading, literacy and learning in the regions, and proves that access to knowledge was not impeded by distance. These items help to provide a more complete picture of our community’s ideals and aspirations. The Warrnambool Mechanics Institute book collection has historical and social significance for its strong association with the Mechanics Institute movement and the important role it played in the intellectual, cultural and social development of people throughout the latter part of the nineteenth century and the early twentieth century. The collection of books is a rare example of an early lending library and its significance is enhanced by the survival of an original collection of many volumes. The Warrnambool Mechanics' Institute’s publication collection is of both local and state significance. Title: The Job Author: Sinclair Lewis Publisher: Jonathan Cape, London Date: 1929 Hardback board book covered with red linen, spine reinforced with blue. The author’s name is embossed in gold on the front cover. There is a logo impressed into the centre of the back cover with the printer’s initials “J C”. On the spine is a white adhesive label with a typed library call number. Inside the front cover is a printed label. Inside front and back covers are a black stamp and handwritten characters in pen and pencil. Inside the back cover and facing page are various date stamps dating from 1942 to 1963. The book, a novel, is one of a Collected Edition published in 1929. It also belongs to the Pattison Collection originally belonging to the Warrnambool Public Library.Logo “J” over “C” Adhesive label - “PAT / FIC / LEW” Printed label “Corangamite Regional Library Service / Warrnambool City Library / Pattison Collection” Stamp on inside front page and inside back page “CORANGAMITE REGIONAL LIBRARY SERVICE / WARRNAMBOOL LIBRARY” Handwritten on the inside page facing cover “1083” and “M 73” Handwritten on inside page facing back cover “1083” Date stamps facing back cover “1958” – “1963”, and on inside back cover “1942” – “195-“ Remnants of a torn out paper “ - - - - - - PU - - - C LIBRAR- / ……” flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, book, pattison collection, warrnambool library, warrnambool public library, warrnambool mechanics’ institute, ralph eric pattison, warrnambool books and records, corangamite regional library service, warrnambool city librarian, mechanics’ institute library, victorian library board, warrnambool children’s library, the job by sinclair lewis, collection edition sinclair lewis, american novel 1929, jonathan cape, sinclair lewis, harry sinclair lewis, 1930 nobel prize for literature

2260.1 - 32 page document, Victorian Act No. 3742, titled "Motor Omnibus Act 1928". Printed on white paper, edge stapled, dated 12/2/1929. Provides the law and licencing provisions relating to the use of buses, omnibuses in Victoria, including Melbourne, Ballarat, Bendigo and Geelong. See also Reg. Item No. 1976 for the regulations regarding this Act. 2260.2 - 8 page document, Victorian Act No. 3851, titled "Motor Omnibus Act 1929". Printed on white paper, saddle stapled, dated 30/12/1929. Provides amendments to the 1928 Act in particular for light motor omnibuses or motor cars. The full Acts can be downloaded from the Parliamentary Web site.2260.1 - has ESCo date stamp of 8 Feb. 1929. 2260.1 - has ESCo date stamp of 16 Jan. 1929, the nine has been altered to a "3" in pencil. Probably should have read 1930. Also has a red "3" within a circle in the top right hand corner.museums omnibuses, ballarat, bendigo, buses, competition

.1)Identity Card, envelope and cover all fawn colour, all printing in Black type, front has "Form C.R.3", date stamp, space for addressed to, signature of holder, cover is see through paper, envelope is plain with window and open one end. .2) Same as .1) except for different person..1) On front in black pen, V "4", F "74", "23168", "Margaretta Guiney 126 Sternberg St Bendigo", on rear in black pen, Witness "J.H. Chamberlain 130 Sternberg St", Holder signature, "M Guiney". .2) On front in black pen, V "4", F "10", "23167", Witness same as .1), Holder "K.M Guiney"civilian identity, cards ww2, envelopes