Lot 40295 – 1870 10k Brown postal stationery envelope with reverse showing very rare Krasnoe Selo railway mark

1870 10k Brown postal stationery envelope with reverse showing very rare Krasnoe Selo railway mark, sent from St. Petersburg to Borgo (Porvoo), Nylandsk province, Finland, cancelled by Cyrillic « S.P.B » oval hs with transit bs, very fine, one of only a few recorded, ex Fabergé.