1872 Folded entire to Cairo, franked Penasson 1pi tied by POSTA VICE-REALI EGIZIANE/ABOU-HOMUS cds with similar alongside, plus very rare usage of the Interpostal seal of the same office on reverse, the Abou-Homus label was used as a seal an broken on opening, a choice items for the specialist, and extremely rare as very few covers bear Interpostal seals (Image)