Russia, 1864, 1k black & yellow, in combination with 1858-64, 3k black & green + 20k blue & orange + 30k carmine & green on reverse of small cover from Vologda to Switzerland, all proper origin and transit markings; cover tears and soiling, Fine and attractive, an extremely scarce four color franking; with 1997 Mikulski certificate. Scott Nos. 5-6, 9-10  Estimate $1,000 - 1,500. $0 (Image)