Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
GRANT AND CROSSMAN USA, 1858-61, MIM Burt's Solar Campasses = P.C., Michigan Museum of Surveying, Lansing. Michigan Museum signed "W.A. Burt Inventor / Detroit, Mich. / No. 6 / University of Michigan / Grant and Crossman / Makers." Detroit, Mich. USNM; Leiserowitz.

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