PL.46 (BH RE-ENTRY) (SG40) ON COVER/NATIONAL LIFEBOAT INSTITUTION. 1860 envelope (some faults and contemporary writing on front and reverse) London to Hull with good used horizontal pair die 2 1d pl.46 rose-red on white paper lettered BH BI tied London "8" numerals and backstamped LONDON MY 24 60. Reverse flap has fine embossed emblem in blue of the ROYAL NATIONAL LIFEBOAT INSTITUTION/14 JOHN STREET, ADELPHI. Unusual. (Ref 101761).