Danube Steam Navigation Co in Bulgaria: 1867 10 kr. green, Type I, a used example on April 1869 entire letter from Sistov to Orsova, tied by oval "AGENTIE / D.D.S.G. / SISTOV" handstamp in blue (Tchilinghirian fig. 928) and as can be often found in Sistov in addition by thimble "14 / 4" circular datestamp in blue (Tchilinghirian fig. 928A). Lightest horizontal filing fold not distracting at all from this most attractive item.