- 1Collection of technical drawings and trade literature relating to a Kearns Borer supplied to UMIST. (YA1986.150/MS0268)
1954-1960, fonds - 2BTH Reminiscences - Sixty Years Of Progress (YA1996.1735/MS0531/39)
1946, item - 3BT-H Radio Receivers & Accessories (YA1996.1735/MS0531/77)
undated (20th century), item - 4The Tungar a patented device for charging accumulators from alternating current (YA1996.1735/MS0531/94)
1929 September, item - 5Loud Speakers, Head Telephones and Gramaphone Equipment (YA1996.1735/MS0531/96)
1928 September, item - 6Catalogue and Sales Lists Electric Powered Vehicles (YA1999.81)
1934-1956, fonds - 7Instruction Book No 1427* Polyphase Induction Motors Types RS & RW Edition H (YA2011.56/1)
c.1950, item
