Heinrich Köhler 384 Auction – Day 1 Single Lots: Europe and Colonies, Kingdom of Lombardy–Venetia – The "P.G." Collection

1885, 20pa rose on pale rose, overprint Type I in blue, on postal card from Freiherrn von Gissa, postmarked with Plovdiv c.d.s. (Sep 13), to Hemer, Westphalia, with Sofia transit c.d.s. (Sep 15), a fascinating card providing insight into the philately of the period, further enhanced by its being franked with the rare Type I blue overprint.