A .400 CALIBRE D.B. BAVARIAN PIN-FIRE SPORTING RIFLE BY RIEGER IN MÜNCHEN, CIRCA 1870 with browne

A .400 CALIBRE D.B. BAVARIAN PIN-FIRE SPORTING RIFLE BY RIEGER IN MÜNCHEN, CIRCA 1870 with browned twist barrels rifled with seven grooves, signed in silver on the rib and fitted with blued back-sight, engraved breech tang, rounded Lefaucheux type actions operated by a horn rotary underlever and engraved with scrolls of foliage on a matted ground, engraved back-action locks decorated en suite, set triggers, figured walnut half-stock, chequered fore-end and grip, the butt with raised cheek-piece carved with a pair of chamois behind and impressed with the date `1875` above, engraved steel mounts comprising trigger-guard and butt-plate, the latter engraved with the number `4707`, and single sling swivel (the rear sling swivel missing) 69cm; 27 1/8in barrels