125153 1840 1D GREY-BLACK PL.6 (SG3)(BE) ON COVER USED IN LONDON.

1840 1D GREY-BLACK PL.6 (SG3)(BE) ON COVER USED IN LONDON. Wrapper used in London addressed to Craven Street, Strand with used 1d grey-black pl.6 (SG3) lettered BE, touched at lower right otherwise four margins and vertical filing crease affects. Stamp tied fine to very fine strike of the EXPERIMENTAL BLACK MALTESE CROSS USED IN LONDON, on reverse London date stamp NO 11 1840. (Ref 125153).