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

1881, 20pa black on rose “Empire” issue, two singles, in combination with 2pi “RO” overprinted vertical pair, tied to cover piece by blue Plovdiv c.d.s., adhesives with a few small tone spots, trivial given the unique status of this piece, being the only known mixed franking of these issues, with no covers recorded; signed Alberto Diena.  Provenance: Collection Earl Galitz, Corinphila, June 2016, lot 4134.