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theodolite
a thin paste made from antimony powder
Knob Enameled: DHR
and philosophy
An incredible antique Lett's Pocket Map of London
German Travelers' Horizontal Sundial, c.1840 gift theodoliteA mid 19th century German Travelers' Horizontal Sundial. Housed in Mahogany with a brass hook locking mechanism; This compass features a paper faced dial and is marked in 30 minute intervals. Made for 48 degree latitude, marked with 'N O S W' cardinal directions. Isogonic variance of 23 degrees. Half blued steel needle on jeweled pivot. Featuring an interesting, ornate brass folding gnomon and engraved hour ring. German made, circa 1840. Likely made
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