Six Waterhouse stops

Six Waterhouse stops

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Science Museum Group
©The Board of Trustees of the Science Museum

Leather pouch containing six Waterhouse stops.The inside of the pouch is inscriebd "Wray London". The stops are marked F5.6 (2 on the reverse), F11 (8), F22 (32), F32 (64), F45 (128), and F64 (256).

Details

Category:
Photography
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A700761
Measurements:
overall: 44 mm x 33 mm x 14 mm,
type:
pouch
credit:
Wellcome Trust