Small German Perpetual Calendar, c. 1830
On application
A German silver Perpetual Calendar of circa 1830. Executed in silver with the with rotating blades. On the obverse the indication sign of the day with the day its date. The reverse is indicated by “Perpetuum Calendarum”, and the number of days per month, length of the night and day and sunset and sun Entrance.
Diameter: 2 cm.