Charles Frodsham Sterling Silver (925) Hump Backed English made carriage clock a limited edition, in excellent condition cosmetically and running strong keeping good time, comes with a key for winding and setting and the original Certificate of Authenticity showing this is No. 287 out of a limited edition of 800 produced. as well as the original Guarantee certificate.. High quality English miniature carriage clock movement and case weigh 15.5 ounces. Limited edition to celebrate the 80th birthday of Queen Elizabeth's mother. Fully hallmarked on bottom of case. Thick sterling silver case lovely engraved dial showing time only. A.L. Breguet was the first clockmaker to produce a hump backed version of the carriage clock. It stands 3 inches tall, 3 inches wide and 2 inches from front to back.