Large 23 3/4" x 18 1/4" pewter platter with gravy drain.Stamped with "London" hallmark and "XX".Also marked "Superfine Hard Metal" believed to be for maker George Holmes of London, 1743-??.Engraved with crown and winged animal and what appears to be WT at top.Excellent condition.Ca. 1800.EST. $300. - $600.