Lot 20221 – 1864 cover from Constantinople Russian Levant office to Bucurest

1864 Folded cover from Constantinople Russian Levant office to Bucurest showing on reverse all Cyrillic single-circle blue ‘Konstantinopol’ postmark (Tchilinghirian fig.3) on front also showing by Manuscript red crayon post rate. A scarce early usage of this postmark.