JOHAN MARTIN, Augsburg

Details

JOHAN MARTIN, Augsburg
A silver pocket universal equinoctial dial, the brass hour ring with applied silver scale divided 3-12-1-9 adjusted for latitude by needle operated cam divided 30°-65°, the compass with blued-steel needle and engraved silvered-dial the horizontal plate engraved with scrolls and Gradus Poli, in hinged case the exterior engraved with the latitudes for approximately forty five cities and signed Johan Martin in Augspurg 48, within wreaths -- 1¾in.(4.5cm.)diam.,(lacks gnomon) circa 1700

See colour plate

Literature

Bobinger, Maxmilian, Alt-Augsburger Kompassmacher, p. 268-80.

Lot Essay

Johan Martin (1642-1721)
A similar dial by Johann Wilebrand is in the Whipple Museum, Cambridge.

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