30-31 var footnoted (26-27C) 1896 2½ on 2a pale blue Q Victoria stamp of India overprinted "Zanzibar", red SG Type 6 surcharge (only 1504 ptd, Sc Type d) in vertical pair with red SG Type 7 surcharge (only 384 ptd, Sc Type e), top stamp is VARIETY - tall second "z", scarce multiple.
