Sudan SG9 1897 10p mauve showing the SIX vertical overprint types (1) RARE

1897 10p mauve type 1 opt block of 12 (2×6) with interpane margin at foot c.t.o. with three strikes of WADI HALFA cds dated 30 SE 97. Folded perfs causing some concertinaing and minor reinforcement between upper pair but a rare and desirable multiple showing the six vertical overprint types. Setting I.