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Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century

Perpetual calendar in mother-of-pearl and gilded brass with three discs.

The upper disc in mother-of-pearl, called ‘CALENDARIUM PERPETUUM’ (perpetual calendar), features a scale of the days of the week with their corresponding astronomical symbols. This disc has a window along the edge for reading the days and is engraved in the centre with a double-headed eagle in relief.

The central disc, made of gold-plated brass, is engraved on both sides with inscriptions useful for the other two discs and borders them.

The lower disc, also made of mother-of-pearl, has six small windows allowing the reader to see, respectively: the sun's path through the zodiac (‘SONNEN LAUFF’), the month (‘DER MONAT TAGE’), the length of the day (‘TAG LAENGE’), the length of the night (‘NACHT LAENGE’), the time of sunset (‘SONNEN UNTERG’) and the time of sunrise (‘SONEN AUFG’). A rosette in the centre.

Note: Superb quality mother-of-pearl and gilding.

Dimensions: diameter of 4,4 cm x thickness of 0,56 cm.

Germany made in early 19th century.

Reference : D ex B2

Price on request.

 

Also discover many more marine and sciences objects in the dedicated section of our French website : « Marine et Sciences ».

 

Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century.
Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century.
Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century.
Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century.
Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century.
Perpetual calendar in mother-of-pearl and gilded brass made in Germany early of the 19th century.

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