Concave wooden disc attached to a glass rod, part of a globe electrostatic machine
1780-1798
Floppy disks from Apricot portable computer
1984
Components used in rabbit ear chamber research
1950-1980
Recording discs for Emidicta Model 2403 recorder for GPO use
End disc from destination indicator
Six discs from a moving picture machine.
Small silver disc engraved with an early design of Sir George Cayley
1799