Instituted May 20 1871. In Gold, a miniature medal, the obverse featuring the crowned W cypher, the reverse bears the dates 1870 1871 within a cross and wreath, measures 18.6mm (w) x 22.4mm (h – inclusive of ring), weighs 5.6 grams (including ribbon), gold marked on ring with eagles head, worn on original ribbon, one small knock to rim, remains in extremely fine condition.