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Title: Watch movement by Josh Penlington, Liverpool, No [Go to resource]
Description: Watch movement by Josh Penlington, Liverpool, No.15231, with bi-metallic compensation balance and overcoil hairspring License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: watch movement Source: Science Museum Creator: Penlington, Josh Identifier: 1958-75 Go to resource More Like this...
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