Lote 739

✉ SERBIA. 1875 (20 Aug.). DANUBE STEAM NAVIGATION COMPANY. Official printed cover from the DDSG Offices in BELGRADE with endorsement "Porofrei" at lower left corner, via Zimony (22/8) and addressed to NAGY BECSKEREK (24/8) with black cds's of each and superb strike of DDSG Roman dated BELGRAD/21/VIII cds. in blue on reverse (Tchilinghirian fig. 670). An outstanding strike of this rare marking in excellent quality. Cert. PUSCHMANN.