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Perpetual calendar
Volvelle type, perpetual calendar with days of the week and months around the perimeter and months of the year in the centre.
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Object Details
| ID: | AST0643 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | Perpetual calendar |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | 18th century |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | Overall: 1 x 36 mm |