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

1885 (September 27), 20pa rose, perforated 11.5, Type II overprint in blue, tied to cover to Constantinople by Plovdiv c.d.s. in blue, underfranked for the 1pi foreign letter rate and thus struck with “T” due mark, backstamped with Burgas (Sep 29) transit in blue and Constantinople c.d.s. receiver, piece torn from back flap, else a fine and unusual cover, particularly scarce with the rare Type II overprint in blue; with 1934 Friedl certificate, to famed collector Konsul Weinberger, and 2022 Hitzler certificate.