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Nautical instruments

Nautical Glass, 1 hour – Continental

Decorative nautical hour glass with hexagonal basis of painted wood and four metal pillars.

From the 17th century times of rise and fall of the sun and moon were known for the different latitudes. But until the invention of the chronometer, the seaman used the glass for the intervening hours. The glass was turned every hour or half hour which was announced on the bell with the corresponding number of strokes.
To prevent moisture of the sand, the connection between the two glass balls was sealed tightly with sealing wax and secured with crossed ropes.
Run time of this glass is one hour.

Catalog: NM. 4-26
Date: ca. 1800
HD: 21×11 cm (8.1×4.2 in)
Signed: not signed
Origin: continental
Condition: in working condition, wear consistent with age and use

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