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LicensePortable sundial and perpetual calendar
Science Museum Group
© The Board of Trustees of the Science Museum
Portable sundial and perpetual calendar, by Johann Henrich Börner, Germany, 1693.
Details
- Category:
- Time Measurement
- Object Number:
- 1938-337
- Materials:
- bronze (copper, tin alloy)
- Measurements:
-
overall: 3 mm 64 mm, .055kg
- type:
- sundial and perpetual calendar
- credit:
- Sir Richard Powell
