Perpetual calendar

    SKU: cmcn435650

    £99.00 Members' price *


    Based on a repeating cycle of 400 years and a solar cycle of 28 years, it works by means of the "Dominical Letter". Purchase the calendar and discover what this means with the full instructions provided.

    This antique-finish impression of a 17th century model is made of solid brass with a wooden base. It comes in a small cardboard presentation box together with the instructions.


    Product code: cmcn435650
    World culture: Enlightenment Europe
    Materials: Solid brass, walnut wood
    Size: Diameter: 9.5cm (3.75 inches) Thickness: 0.6cm (0.24 inches)
    Weight: 0.68kg
    Standard UK delivery: 5 working days. Overseas times may vary

    This price is inclusive of VAT

    Every purchase supports the Museum

    Delivery & returns

    Delivery charges: are calculated depending on the weight (kg) and destination of the order. The order total is displayed on the payment page before you confirm your order.

    Estimated Delivery times:
    UK and Europe: 5 - 14 working days.
    Rest of the world: 10 to 28 working days.

    Premium delivery: is available at the checkout for UK addresses only.

    For more information, please see our full Delivery policy here

    If for any reason you are not entirely happy with books and other products purchased from the shop, we will refund the value of the goods supplied. Please contact Customer Services directly on 0800 218 2222 (or from abroad on +44 (0)20 7079 0970) for individual advice.

    Unfortunately we are unable to offer refunds or exchanges on pierced earrings for hygiene reasons, unless they are faulty.

    For more information, please see our full Returns policy here