A GEORGE III SILVER MUSTARD POT AND A COVERED CREAMER. Mustard pot by Robert Hennell, London, 1790, vasiform, with threaded borders, hinged lid with ball finial, cobalt glass liner. Creamer by Robert and David Hennell, London, 1797, vasiform, with threaded borders - 10 oz., 4 dwt,; 5 1/2 in. high, the creamer. Estimate $300-400