A pair of late 18th Century 20 bore duelling pistols

A pair of late 18th Century 20 bore duelling pistols, by H. W. Mortimer, slightly swamped sighted octagonal barrels 10 in., top flats engraved 'H.W. MORTIMER - LONDON - GUNMAKER TO HIS MAJESTY', hooked breeches, London proof marks and maker's mark to the undersides of the breeches, acanthus engraved tangs; locks engraved 'H.W. MORTIMER', frizzens with rollers acting on the springs, safety bars; full stocks with steel furniture, fat sided grips with diamond lattice chequering punctuated by flower heads, horn tipped ram rod with worm to one - the other with later steel tipped ram rod; in a baize lined fitted case with associated combination flask (holding powder, balls and flints) and ball mould. By Harvey Walklate Mortimer 1 (1753-1819)