cover 1876 XU5 from Bihac to Sarajevo, bearing on reverse Turkey 20pa. pair and 1pi. cancelled by triple oval framed Arabic seal, struck on despatch, additionally bearing Hungary 1874 "Envelope" type 5Kr. and 10Kr. (the former applied to front) and both tied by "ZAVALJE" c.d.s. (4.3), transit cancellations of Karlovac, Sisak and Brod applied also to reverse, bilingual "PREPORUCENO/Recommandirt" h.s. struck on face. A rare and attractive combination. Photo in colour