"Silent Triangle" 1/2 minute impulse dial movement

Made:
Leicester

"Silent Triangle" 1/2 minute impulse dial movement by Gents of Leicester, patented 1925

Details

Category:
Time Measurement
Object Number:
1986-1553
Materials:
brass (copper, zinc alloy), copper (alloy), cotton (fibre), plastic (unidentified) and steel (metal)
credit:
Vaughan, D. (Dr.)