PL.1A MATCHED PAIR 1D BLACK (SG2) AND 1D RED PL.1B (SG7) LETTERED MJ. A very fine used 1840 1d black pl.1a lettered MJ with fine margins and cancelled very fine red M.C. matched with 1d red pl.1b, three margins, cancelled black M.C. 1d black clearly shows 5 and 10 o'clock ray flaws NW square. (Ref 100964).