Lot 31664 – 1900 C.E.F. 12a purple on red mint nh horizontal pair with very clear double opt one albino

1900 C.E.F. 12a purple on red mint nh horizontal pair with very clear double opt one albino (the albino impression 1mm to left and slightly above the inked opt easily detectable from both back and front), the left stamp additionally showing a prominent raised type variety between the E and the F, very fine and possibly unique (SG £380+)