Perpetual calendar with equation of time table
Perpetual calendar with equation of time table printed by Jules Didcot L'Aine in 1830 and mounted on a metal disc (B1668)
Details
- Category:
- Time Measurement
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1990-640
- Measurements:
-
overall: 104 mm x 7 mm
- type:
- calendar
- credit:
- Wellcome Trust