Perpetual calendar with equation of time table

Perpetual calendar with equation of time table Perpetual calendar with equation of time table

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Science Museum Group
© The Board of Trustees of the Science Museum

Science Museum Group
© The Board of Trustees of the Science Museum

Perpetual calendar with equation of time table printed by Jules Didcot L'Aine in 1830 and mounted on a metal disc

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