Electrogalvanic amulet, Richardson's Magneto-Galvanic Battery (or possibly a fake?), disc with cross at centre and 14 small discs arranged in a circle around it. Made of zinc, brass, copper, iron and nickel, with woven string instead of chain. Made by A.M. Richardson & Co., New York, USA, 1880-1900. Engraved on front of cross with two hearts radiating electric bolts, and on reverse side with 'PAT & RD US, GB, FRANCE, ITALY ETC.' Note gap in outer ring around disc. Similar to A602762.