made in Germany
A perpetual calendar is a calendar which can be used, theoretically, forever. This silver example was made in Germany in the 18th century.
The calendar is composed of three leaves, the main leaf pivoting around the centre. This side gives the date, against the days of the week, which has its astrological symbol to the left. It is also marked 'PERPETUUM/ CALENDARIUM'.
All the information this pocket instrument could give would have been of interest in a more religious, agricultural society. Today, this type of information is often found in pocket diaries.
To search on related items, click any underlined text below.