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Featuring a wooden lunar volvelle and equatorial sun and moon dial
Both included in their original wood cases
While one lyden jar is slightly compromised
Dimensions: 8
and early example
Early 'Heliochron' Pantochronometer trial frame Featuring a wooden lunar volvelleA Rare early 19th century Pantochronometer hand engraved 'HELIOCHRON' on lid. Complete original. Dome cased brass sundial compass with floating paper face and fixed brass gnomon. Pantochronometers were first developed in the late 1700's, and widely popularized in 1820 by Samuel Porter. A fine, functional, scarce, and early example. Circa 1830. Diameter: 4. 5 cm. Height: 3 cm. Weight: 1. 7 oz.
