- 1Photographs of electrical equipment (YA1974.34/MS0249)
1974, fonds - 2Papers and film relating to DATA Corporation Astronomical Camera (YA1993.51/MS0008)
c1965, fonds - 3Instruction booklet and diagram for Marantz quadrophonic receiver (YA1993.260)
1973, fonds - 4A Line to Success in Organisation (YA1998.12)
c1926, item - 5Collection of Post Office Telegram and Telephone Papers (YA2005.92)
1900 - 1989, fonds - 6Manual for the Lubitel 2 Twin-lens Reflex Camera (YA2006.15)
c 1960, item - 7Lantern slides of the solar system (YA1971.22)
1895, fonds - 8Zonephone (2016-2028)
1989, fonds
