An American 16 bore double percussion gun by or for John Mullin of New York

An American 16 bore double percussion gun by or for John Mullin of New York, twist browned imported barrels 30 in., with Birmingham proof marks, hollow top rib engraved 'JOHN MULLIN NEW YORK', rib extension over breech plugs engraved with a dog's head, tang and top strap profusely engraved with intertwining foliate scrolls; back action locks engraved with game scenes involving pointer dogs and birds and with geometric borders, scroll front trigger guard with further fine scroll and game engraving, figured straight hand stock, steel butt plate with game scene and foliage engraved to the tang, brass tipped ram rod with concealed worm; in an associated oak case with brass roundel to the lid, with associated accessories comprising: embossed powder flask, leather shot flask, oil bottle, cleaning rod and turn screw.