Lot 392:
Nocturnal instrument 15th c metal
Not sold
Description
Nocturnal multiple turning discs afford user the ability to tell time at night for navigating . Larger outside plate is repousse copper – revolving plates profusely engraved. Metal maybe zinc.. Extremely rare. 15th or 16th c .. can be used in conjunction with other instruments for navigation. May have had a central pointer originally. About 11 inches.
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