Main-spring of a watch smaller than a threepenny piece

Made:
before 1889
Main-spring of a watch smaller than a threepenny piece

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Main-spring of a watch smaller than a threepenny piece
Science Museum Group
© The Board of Trustees of the Science Museum

Main-spring of a watch smaller than a threepenny piece

Details

Category:
Metallurgy
Object Number:
1889-164/3621
type:
specimen
credit:
John Percy Collection