British Medal: The International Exhibition, London, 1862, copper prize medal (76.5 mm; 213g) by L. C. Wyon, after Daniel Maclise, in original box. Obverse: Britannia surrounded by Industry, Arts, Science and Agriculture; rev. wreath around inscription, named on edge, C. Challen & Son. Class XVI. Charles Challen & Son were piano makers in Finsbury Park.