Bottle coaster - Engraved with orange tree Dutch royalist emblem -.925 silver

An English silver bottle coaster dated 1821, in excellent condition, made of 0.925 silver, diameter 12.5 cm, height 3.5 cm, weighing 153 g, engraved with a central orange tree medallion and an ajour-cut scrolling foliage rim, stamped London assay 0,925 with date letter f. Era: 1400-1900. Condition: Excellent condition: barely used with minimal signs of wear. Origin: United Kingdom.