RES.PL.5 (FF) PERF 14 (SG22) USED ON COVER CONSTANT VARIETY. 1855 "Standard Life Assurance Company" printed document Stourbridge (Worcs) to Liverpool with good used die 1 Res.pl.5 lettered FF S.C.14, several short perforations, tied "750" numeral of Stourbridge and back stamped STOURBRIDGE MR 21 1855. Stamp shows superb CONSTANT VARIETY "MARK IN F SQUARE" - unlisted by Gibbons but present on imprimatur sheet. (Ref 97533).