1856 COMBINATION OF 1D IMPERFORATE (SG8) AND 1D PERFORATE (SG17) ON COVER USED WITHIN LONDON. Envelope used locally in London with 1d imperf pl.172 (SG8) lettered TL, crease affects, but fine four margins and MISSING IMPRIMATUR LETTERING, also 1d perforate pl.173 S.C.16 (SG17) lettered FH in STATE 2, trimmed perfs at top. Stamps tied fine strikes London '78' District Office duplex MR 8 56. Despite faults an attractive example of this rare COMBINATION OF IMPERF AND PERFORATED ISSUES. . (Ref 71753).