STAFFORDSHIRE SCRATCH BLUE SALT GLAZED TAVERN JUG,late 18th century, of baluster form, applied medallion with a bust portrait of George III and the initials GR, the body incised and blue painted with stylised flower heads, height 16cmRef: Mountford (AR), The Illustrated Guide to Staffordshire Salt Glazed Stoneware, Barrie & Jenkins, London, 1973, ill 168 and p 50 for similar items.