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Our Perpetual Calendar is based on the dominical letter and has an effective value of almost 1200 years, from 1600 to 2700 centuries . It has two faces: the first is a partial reproduction of Planisferium Copernicanum, on the other side we see a compass rose winds and the portraits of Galileo Galilei and Newton. With this calendar you will find using a few simple calculations, the day in which fell any date that comes to mind (eg birth, the day you met a certain person etc) with absolute precision. Is made of metal with a bronze coating and is accompanied by a booklet with the history and use.
- Height: 10.5cm.
- Width: 7.5cm.
- Thickness: 1.5 cm.
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