A DELVIGNE PATENT .30 D.B. PIN-FIRE POCKET PISTOL, No. 71, with rifled blued octagonal sighted barrels pivoting to the right for loading and with bright steel locking plunger, bright steel hammers and stud trigger, border engraved blued frame, rounded chequered walnut grips, and nearly all its original finish, Liège and London proof marks, circa 1870