A 16th-Century [?]German gold finger-sized ring dial,

细节

A 16th-Century [?]German gold finger-sized ring dial,
unsigned, the rectangular section inner ring with pierced suspension lug, engraved on the outside with the initials of the months, the inside engraved with hour scale 4 - 12 - 8, the round section outer ring with aperture and collet-set single cabochon malachite, the cup setting with engraved decoration -- 1in. (2.4cm.) diameter

See Colour Illustration

来源

Robert Seligman Collection.

拍品专文

Finger ring altitude-measuring dials of this type in gold are rare, and this example was probably made for a wealthy client, as malachite was an expensive stone during this period. The use of malachite also suggests that it was made in the Augsburg area where malachite was mined, as would the style of engraving.