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

1885 (30 September), registered cover to Gabrovo, franked with 1pi Type I, overprinted in black, paying the 20pa inland letter rate and 20pa registration fee, tied by Plovdiv c.d.s. (Sep 27), further free strike of September 30 above, handstamped “RECOMMANDEE” in black, reverse with next-day Gabrovo c.d.s. receiver, the odd small stain, trivial given the tremendous rarity of this cover, being the unique example postmarked on the final day of validity of the provisional frankings.