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H106 Planisferic Astrolabe
*From the Greek “star searcher” the astrolabe was introduced in Europe by the Arabs.
It became a vital tool for astronomers, astrologers and surveyors. Among other calculations one can establish the height of the Sun, the planets and the stars, determine time and Latitude, measure heights, calculate distances and astrological implications.
*To keep time at night, man learned by observing the stars: certain boreal constellations rotated around the Pole Star about once per day, as if a giant clock hand were keeping time around a celestial sphere of 24 hours.
This European Nocturlabe or Horologium noctis was made in the mid-17th century.
H110 Perpeptual Calendar
*This vertical disc dial has two sides: an altitude sundial and a perpetual calendar, which is the one depicted.
The calendar consists of three rotatable discs set on top of the main disc with a date scale and a lunar age scale among other features.
Made in France (1650-1700), is at the National Maritime Museum, London.
Diameter: 25mm / Thickness: 1.8mm
Non functional item.
How to buy:
Pins are available on Brass or Silver plated. Important: Please advise when placing your order which finish you prefer. Attention: if there are not notes about the finish, all pieces sent will be on Brass.
They can also be sold as an individual piece accompanying another order.
If you want to buy a pin with another of our pieces, please do not make the purchase online. Please contact us through firstname.lastname@example.org to send you your personalized invoice.