cover 1875 registered envelope (opened out for display and repaired at top) from Bihac to Sarajevo via Sisak and Brood bearing on reverse Turkey 20pa. vertical pair and 1pi. (blunt corner) cancelled by triple oval framed Arabic h.s. of Bihac and on front Hungary 5kr.(2) and 10kr. (centrally slit, on reverse) cancelled by "ZAVALJE" c.d.s. and one 5kr. additionally by double-ringed "PREPORUCENO/Recommandirt" h.s. A rare and spectacular combination cover. Photo