A GERMAN SILVER AND NIELLO EQUINOCTIAL COMPASS-SUNDIAL
BY JOHANN MARTIN, AUGSBURG, CIRCA 1700
A GERMAN SILVER AND NIELLO EQUINOCTIAL COMPASS-SUNDIAL BY JOHANN MARTIN, AUGSBURG, CIRCA 1700 Elongated octagonal, the base set with a compass with a blued-iron needle and engraved and nielloed with the names and latitudes of various continental cities, the hour ring engraved and nielloed with Roman numbers I-IX and III-XII, with small brass pointer, the folding latitude arc engraved for 5-90°, signed 'Johann Martin Inn Augsburg' , with an associated shagreen covered part case 2 1/8 in. (5.5 cm.) wide
A GERMAN SILVER AND NIELLO EQUINOCTIAL COMPASS-SUNDIAL
BY JOHANN MARTIN, AUGSBURG, CIRCA 1700
A GERMAN SILVER AND NIELLO EQUINOCTIAL COMPASS-SUNDIAL BY JOHANN MARTIN, AUGSBURG, CIRCA 1700 Elongated octagonal, the base set with a compass with a blued-iron needle and engraved and nielloed with the names and latitudes of various continental cities, the hour ring engraved and nielloed with Roman numbers I-IX and III-XII, with small brass pointer, the folding latitude arc engraved for 5-90°, signed 'Johann Martin Inn Augsburg' , with an associated shagreen covered part case 2 1/8 in. (5.5 cm.) wide
.jpg "Source: Christie's")
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
