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Date: |
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Description: | dial, portable - Reclassified 24/2/97 as a Tide Calculator and transferred to navigation collection. Also re identified as 17th century not 16th.
Circular brass tidal calculator.
The outer circle is divided into 2 x 12 hours and compass directions.
The middle circle has a pointer for the Sun and is marked for the age of the Moon and compass points.
The inner circle has a pointer for the Moon and is marked with compass points. | Publisher: | "http://collections.rmg.co.uk/" | Subjects: | portable dials | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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