ONE OF ONLY SEVEN RECORDED 1926 (Dec 31) Envelope sent locally unfranked, addressed in Gujrati and English, with Zanzibar cds on reverse, showing "T" in circle tax mark at upper right, the deficiency paid by 1926-30 type D1 6c black on orange Postage Due affixed at left (uncancelled as always), typical insignificant blemishes but very fine, a great rarity, being one of only ten recorded examples of this stamp, of which seven survive on card or cover (Image)