1874, Folded envelope from Constantinople on May 1874, bearing postage due 20 pa. brown and 1 pia. brown, each rough perf., tied by 2 DERSAADET 1290 (isf.no.20, RRR*, unrecorded on cover), all arabic early censor mark ‘muayene olunmusdur’ alongside, full content, addressed to Filibe, usual file fold, fine and scarce.
