Lot 6007 373rd. Heinrich Köhler Auction - 6007

"Porto-Piastre" with manuscript "6" on folded letter from Constantinople to Broussa with black “POSTA DEI PIROSCAFI OTTOMANI COSTANTINOPOLI P.P.” alongside, fine and very scarce, signed Sorani and Calves Provenance: ​Cengiz Arsman Collection