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Inventory no. 81528 - Former Display Label

German DIPTYCH DIAL
1562

Ivory, with the engraving coloured red and green, signed "GEORGIVS HARTMAN NORENBERGE FACIEBAT ANNO DOMINI M D LXII"
On the upper surface of the upper leaf is a polar dial; on the lower surface of the same leaf, an equinoctial dial and a scale for latitude adjustment. Unlike most ivory diptych dials, this dial does not include a horizontal string-gnomon dial. The compass needle and glass are missing. There is a table of the latitudes of 34 places on the lower surface of the lower leaf.

The ornamentation on the upper surface of the upper leaf includes the figure of an angel.

[62-28]
Purchased

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