A brass German graphometer
17th century
unsigned and undated, degree scale with germanic stamped numerals [0°]-180° and 180°-[0°] divided to 1°, engraved floral motifs with two animal faces, shaped slit sights on body and alidade, the silvered compass rose 180°-0°-180° divided by 1°, engraved points, S, W, N, O filled in red, original blue needle.
9½in. (24cm.)
A brass German graphometer
17th century
unsigned and undated, degree scale with germanic stamped numerals [0°]-180° and 180°-[0°] divided to 1°, engraved floral motifs with two animal faces, shaped slit sights on body and alidade, the silvered compass rose 180°-0°-180° divided by 1°, engraved points, S, W, N, O filled in red, original blue needle.
9½in. (24cm.)
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