Auction Series 257-264 in Zurich Day 4

Danube Steam Navigation Co 1867: 10 kr. green Type I, perf. 9½, a used example on December 1868 Letter sheet from Widin to Galatz tied by oval AGENTIE / DDSG / WIDDIN handstamp in blue (Tchilinghirian fig. 933) with the extremely rare oval Ship's handstamp JOSEF KARL / 21 in blue (Tchilinghirian fig. 310) alongside. The stamp with normal to good perforations, cut at right for separation, some toning around the stamp, the cover with some wear, the rare Ship's cancellation very clear and fine. A scarce and desirable usage, only this cover and the cancellation of a 10 kr. red on a 1870 Galatz to Rustschuk are recorded. Cert. Ferchenbauer (2020).
Catalogue 261: Stamp Issuing Steamship Companies