- 1J Halden & Co. technical drawings (YA1988.148/MS0386)
1967-1968, fonds - 2Catalogue - Halden Surveying Instruments (YA1996.1634)
c 1950, item - 3Illustrated catalogue of A. G. Thornton Ltd (YA1996.2239)
1908, item - 4Sample Book of Photo Papers (YA1996.3231/2)
undated (20th century), item - 5Sample Book of Tracing Cloths (YA1996.3231/3)
undated (20th century), item - 6Civil Engineering and Surveying Instruments (YA1996.3231/5)
1925 January 1st, item - 7Catalogue of Drawing Boards Tee & Set Squares, Scales, Curves, etc (YA1996.3231/8)
1925 July, item - 8Drawing Office Service - Plan Productions (YA1996.3231/9)
undated (20th century), item
