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

1881 (January 11), cover franked with 20pa black on rose horizontal pair, paying the 1pi foreign letter rate, tied to cover to Schumen by blue circular grid cancel, matching blue Plovdiv despatch c.d.s. below, reverse with Varna c.d.s. transit (13 Jan), with Schumen c.d.s. receiver on front, the odd spot of toning, else fine.