3 3 c m
40cm
actual image size: 32cm x 25cm
Description
Sector by Troughton, bras, engraved "Troughton, London" - 12" x 3 1/4" when closed, case 14" x 4 1/2" x 1", "H.O.2." painted - on case Made by Troughton. - London
Image Details
Image Ref.
10304403
© Science Museum / Science & Society Picture Library