50th Auction Anniversary Auction - Day 3

Mexiko: 1872, 50 C. blue, error of colour blue instead of yellow, a vertical right margin pair with
1872, 50 C. blue, error of colour blue instead of yellow, a vertical right margin pair with ovpts. COLIMA and 9 72, used, touched to cut in left, signed and cert. Georg Bühler (1989): "Pairs of the error of colour are extraordinary scarce".
Value Add Taxes (19%) will be added to the hammer price and the buyers premium.