Æ, diameter 25.1mm.   GEORGIVS III DEI GRATIA.  His laureate head right.  R. PASCALL'S * GOLDEN MALTX * around spade-shaped shield.   Neilson & Warburton 8500.  Pierced, Fine

James Pascall was a wholesale confectioner, started the business in 1866. The product was launched in 1879.

The advert is from the Wellcome collection, dated ca. 1889.