96 black and white prints, 5 black and white prints mounted on board, 5 colour images, 10 negatives, featuring buildings by Hayes and Scott and employees of the firm.

Magazine and newspaper articles of interest to the firm, mostly featuring photographs of buildings and floorplans. Titles of magazines include 'The magazine of building', 'Art in Australia', 'Architectural design', 'Architectural forum', 'Time', 'House and home', 'Progressive architecture'.

162 colour slides featuring buildings of Hayes and Scott.

50 badges relating to radical politics, labour movements, and student protests.

Exhibition catalogues from Australian art galleries, exhibitions that toured Australian galleries and catalogues from galleries in countries other than Australia.

20 personal diaries kept by Gertrude Langer between 1920 and 1948.

Correspondence received by Gertrude Langer (nee Freschl / Fröschel) from family and friends, her husband Karl Langer, artists and arts administrators, journalists and readers of her art exhibition reviews. Correspondence from family members include her father Alois Freschl, her mother Channa (Anna) Fröschel, her sister Lisl Goldhammer (later Lisl Korn), her nephew Hans Georg / Yochanan Goldhammer ('Hansi'), her sister-in-law Magda Rosse-Langer, (nee Magda Langer, formerly Magda Blaschko, then Magda Rosse), her nephew Karl Rosse ('Karli'); her cousins Oszkar Ascher and Hedwig Ascher (children of her aunt Pauline 'Paula' Ascher, nee Freschl), her father-in-law Karl Langer senior and Resi Mödler (her and her sister's nanny, and their mother’s housekeeper). Correspondence from friends include Kathleen Campbell-Brown, Henriette ‘Henni’ Cornfield (nee Zerkowitz), Paul Engel, Stefan Goldhammer, Ernst Greiff, Mary Grosser, Dorothy Helmrich, Hanni von Maltzahn, Felix Morgenstern, Robert Rosenthal, Edward 'Teddy' Sachs. Correspondence from Australian artists include Barbara and Charles Blackman, Betty and Roy Churcher, Marjorie and Lloyd Rees, Kath and Len Shillam. The correspondence also Includes cards received from dignitaries (governors, politicians and ambassadors) as well as cards with original art works and prints, including from Douglas Annand, Betty Churcher and Roy Churcher, Margaret Cilento, John Coburn, Laurence Hope, Daphne Mayo, Mary Norrie and Angus Norrie, Lorie Sachs, Kath Shillam and Len Shillam and Josef Strzygowski.

Identity documents, emigration papers and biographical material.