1c Blue on Oriental Buff, Die 83, Specimen Ovpt. (U298 var; UPSS 890 var). Unused and with part-printed return address and "sample imprint", bright colors, Very Fine and choice example of this rarity, Porter Venn notes that "Two mint cut squares and one full corner sold at auction since 1988. No. 890 exists as full corner Specimen entire. No. 891a and 892 may not exist as entires". This Specimen should be considered rare.

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