ZANZIBAR 1926-30 SGD7/a Postage Due
Stock Code: P167005935
Postage Due. 1926-30 12c black/green, VERTICAL PAIR from R4-5/1 on the sheet (lower left corner), the upper stamp exceptionally showing the error "cent.s", lightly cancelled by complete "JA 7 31" cds which barely impinges on the lower stamp. Trivial discoloration (as often with this value), still really fine condition and one of only six recorded examples of the "cent.s" error. Unique in this se-tenant form, with the further distinction of being the only known multiple of this value (or indeed any of the "rare" 6c, 12c and 25c values). A most important and desirable item.
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