30 way mirror drum for mechanical television system

Mechanical item believed to have been associated with W G Pye's experiments with 30-line mechanical television systems: 7" diameter, 30 way mirror drum. (Appears to me to be a B J Lynes mirror drum 100% identical to those mass produced for use in Baird mirror drum Televisors from 1933-35 - IB 20/11/15. Further research required).

Details

Category:
Television
Object Number:
1996-5033/1
Materials:
metal (unknown), mirror-glass (silvered) and brass (copper, zinc alloy)
Measurements:
drum: 73 mm, 206 mm, 1kg
on stand: 225 mm x 240 mm x 113 mm,
type:
mirror drum
credit:
Jackson, Donald