Dublin mail coach flintlock trombone. Round barrel, flared towards the muzzle marked "For H.M. Mail Coaches, Dublin", with thunderbolt flanks, signed on the upper flanks "H.M. R. M. Dublin". Lock engraved "G.R" crowned and on the tail "Calderwood Dublin 1815" and flat-bodied swan-neck hammer. Cut brass fittings. Back plate engraved "For his Majestys Mail Coaches Dublin". Walnut stock. Fanon ramrod with brass tip. ABE (oxidation)