2c Brown, Plate Proof on Card, Specimen Overprint (113P4-S). Blue 10.5mm overprint reading up, three huge margins to ample at right, rich color, Very Fine and choice and extremely rare, an upcoming article in the Chronicle will discuss these overprints which are believed to originate with a foreign postal administration, approximately four are known on the 2c value, each a different type and unique, unlisted in Scott, with 1990 P.S.E. certificate stating overprint is "of unknown origin"

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