A .680 CALIBRE FLINTLOCK DOUBLE RIFLE BY JOVER AND SON, FROM THE ARMOURY OF THE NIZAM OF HYDERABAD, LONDON PROOF MARKS, CIRCA 1790 with rebrowned twist barrels rifled with nine grooves, fitted with gold fore-sight and signed in gold capitals on the rib, breech inlaid with two gold lines, gold vents , stamped with proof marks beneath and with police numbers on the left barrel, engraved grooved breech tang decorated with a gold sunburst, signed stepped bevelled detented locks engraved with trophies-of-arms on the tails, fitted with cocks engraved en suite, semi-rainproof gold-lined pans, and steel springs with rollers, highly figured walnut half-stock, chequered grip, the butt with raised cheek-piece carved with a scroll on the left, engraved steel mounts comprising broad scrolling trigger-guard decorated with a tiger shaded by a palm tree (worn) and with pineapple finial, butt-plate en suite with the trigger-guard, and fore-end cap forming the rear ramrod-pipe, border-engraved vacant silver escutcheon and barrel bolt escutcheons, and associated iron ramrod 80.5 cm; 31 ¾ in barrels Jover and Son are recorded at 337 Oxford Street circa 1784 until 1796 when they became bankrupt.