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5mm x 2mm= 0
With data from an anemometer
2-Sapphires: 4
Epoch 1968 is in reference to the year the star positions were taken
There are further divisions within this time standard such as Ke and Fen (exact calculations of these units have varied throughout dynasties)
French 'New World' Travelers' Horizontal Sundial, c.1830 collectable 5mm x 2mm= 0A rare, early 19th Century French Travelers' Horizontal Sundial. Housed in a folding, hook lock Mahogany case. Paper face dial graduated every degree, with Cardinal Points marked (N E S O). Half blued steel needle on jeweled pivot, with folding brass gnomon, engraved brass hour ring, and locking bar. Functioning piece. Unsigned, circa 1830. Designed for 49 degree latitude (Paris), this compass was interestingly designed for export to the New World
US$ 32.00
US$ 12.00
US$ 24.50
