1918 4f magenta, upper right pane of 20, hand-overprinted Type I, letter "F" of different character, showing position 11 with inverted "Fiume" overprint, n.h., gum wrinkles and crease at upper right, others fine-v.f., signed Caffaz, Raybaudi, with his 1998 certificate. This is the largest known multiple, the only known with this variety (Sass. Euro 45,600++, not counting the inverted overprint, which is unlisted unused) (Cat No. Sass.5/Ib) (Image)

Est.US$7,500