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

1881 (July 4), 1pre on 20pa green, overprinted “R.O.” in blue, tied to cover to Koprivtschitza by blue railway c.d.s., reverse with blue Tartar Pazardschik (Jul 6) and Karlovo (Jul 8) transit backstamps, underpaying the 1pi rate for the second weight class by 20pa, thus struck with blue “T” due mark, cover reduced at right, various small edge tears, heavy vertical fold at right, but a rarity of Eastern Rumelia, one of only a few genuine RO overprinted covers recorded by Hitzler; with 2022 Hitlzer certificate.