- 1J Halden & Co. technical drawings (YA1988.148/MS0386)
1967-1968, fonds - 2Catalogue - Halden Surveying Instruments (YA1996.1634)
c 1950, item - 3Halden - Drawing Office Specialists (YA1996.3233/6)
undated (20th century), item - 4Advertising Material and Catalogues for Machinery and Equipment (YA1996.3233)
1885-1930, fonds