country obtained from

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  France (1) Netherlands (7) United Kingdom (1) United States (1)

graduation

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  deg (8)

fine reading

•  drum micrometer (6)
•  scale micrometer (1)
•  vernier (single) (1)

Type of use

•  Home / hobby (3)
•  Navigation (6)
•  Survey (4)

Material

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image direction

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  upright (5)

Brand

•  Bosun (1)
•  C. Plath (7)
•  Cruver Mfg Co (1)
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•  de Koningh (2)
•  Ebbco (4)
•  Einson Freeman Co (1)
•  F. Barker and Son (1)
•  H. Haecke (1)
•  Heath and Co (1)
•  Henry Hughes and Son (2)
•  Ilon Industries (2)
•  J. Coombes (1)
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•  VEB Freiberger (4)
•  Weems and Plath (2)
•  Welch Scientific Company (1)