Key switch, type C-412-C, by Muirhead and Co. Ltd.
Original keys of the Balloon Factory
Two keys for a wooden box containing a set of seven specimens of elements prepared by Bunsen and Matthiesen
1856-1885
Key for leg iron, European, 1501-1800
1501-1800
Acme patented Key
1869
Large iron key
1830-1910
Silver gilt presentation key in case
1927
Key for leg iron, iron, European, 1501-1800
1501-1800
Keys to the Clockmakers Company chest
1766
Key for leg iron, European, 1501-1800
1501-1800
Key for leg iron, iron, European, 1501-1800
1501-1800
Folding key for oxygen cylinder valves
1869-1930