Maritime Sundial/Compass | 18th century dyptich

Product Description | Expert Testimony issued in Portugal (Individual Translation into English)

Quadratic Dyptich Dial
Explicitly from the 18th century
Anonymus
Portuguese characteristics

Material: Ivory, metal, paper
Measures-closed: 2.8 x 2.6 x 0.8 inches (72 x 67 x 21 mm)
Face A: Quadratic, depiction of Summer
Face B: Quadratic, depiction of Winter and a scale from 1°- 80°
Face C: Quadratic, horizontally lies the compass. Compass needle is not the original.
Compass rose, richly decorated and ornamented - clearly visible and signed.
The Compass rose is hand-painted and the original.
Lock is the original.
Face D: lid of the compass box, material is ivory, lying deep within a „frame“
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Statement: Estimation as of the former owner and auction house Christie's South Kensington:
According to Auction House Christie‘s Department of Scientific Instruments the estimated auction value* of this sundial is at least 3,260 $ (us). According to previous owner Mr. Sieger the object‘s worth is 5000 - 7000 $ (US).

* Please note that such auction estimates are not for valuation purposes and are subject to revision on inspection of the object. Condition reports are available on many lots and are provided as a guide only.