Zanzibar 1896 (11 May) 2½ on 1a plum, type 3 surcharge in black, small second "z" and "inverted" "q" for "b", SG23E.
A fine, well-centred, mint example with large part original gum.
The stamp is from the first setting (with small fraction in surcharge) which was mostly used, and very scarce in mint condition. An interesting variety of this classic British Commonwealth stamp.
