A 16 bore flintlock holster pistol by Sykes of Oxford

A 16 bore flintlock holster pistol by Sykes of Oxford, heavy twist browned sighted octagonal barrel 11.5 in., top flat with 'SYKES OXFORD' inlaid in gold, gold band to the breech and gold lined touch hole, London proof marks and marked 'NARROW TWIST' to the underside, hook breech with engraved tang, border engraved lock signed 'SYKES', swan-neck cock, frizzen spring with roller bearing, safety bar, half stock with horn fore end cap, engraved steel trigger guard with finial in the form of a plume of feathers with the legend 'ICH DIEN', possibly indicating a connection with George, Prince of Wales, a noted patron of gun makers, c. 1810