Mirror Drum used in Mechanical Television Systems
14" Mirror Drum With Twenty Mirrors and Motor
1936
Baird 10" Mirror Drum with Twenty Mirrors
1937-1938
Spare Mirror Drum For Zeiss Ikon 'Zeitlupe' High-Speed Camera
1935
30 way mirror drum for mechanical television system
1933-35
12" Mirror Drum with 10 Mirrors used by Mr. J L Baird
Mirror Drum
36 way mirror drum for mechanical television system, c 1935
1930-1940
Drum Associated with Mechanical Television Sysyem, c 1935
1930-1940