Auction 333-341 Europe & Overseas - Day 6

1850: 6 cs. black, plate 1, type 9, used on cover, from VERGARA to HUESCA, cancelled by a very attractive 'O' cancel in blue applied at Vergara, with VERGARA/VITORIA datestamp alongside, four margins, a great rarity, the only known example. Cert. Comex (1986) and F. Graus (1986).
Provenance: Juan Senabre and Pedro Miranda.