An 18th century German perpetual calendar of disc form with the days and date on one side and...

0-0 £360

An 18th century German perpetual calendar of disc form with the days and date on one side and inscription " Calendarum perpetuum", the side with six apertures and the titles: Monath, Tage, Sonegehet auf tages lange, nacht lange & Himmels Zeichen, unmarked, probably mid 18th century, 1.75in (4.5cm) diameter.