Perpetual Calendar. Pin

H110

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.

Non functional item. Available on brass or silver plated, please remember to advise when placing your order.

Measures:

Diameter: 25mm / Thickness: 1.8mm 

Diameter: 0.98" / Thickness: 0.07"

How to buy pins:

Please check Mixed Pin´s Pack