Sterling Silver Perpetual Calendar. This Perpetual Calendar is available in solid Sterling Silver and is hand crafted in the UK. The base and the back of the Silver Calendar are made from solid sterling silver by our own silversmith. The Silver Perpetual Calender is fully hallmarked and boxed. Each Perpetual Calendar is supplied with a set of cards for each date & month of the year. Measurements are approx 11 cm x 4.5 cm for the base and the back is approx 6.3 cm in height. A great gift for any occasion or Presentation. Please note the Sterling Silver Perpetual Calendar is made to order. Please allow approx 4 week for delivery.