Revenue stamps of Zanzibar 300/- and US$5 were issued. The Airport Charge 800/- (and possibly the other value) also exist with a handstamped surcharge 1000/-. Revenue stamps of Zanzibar Zanzibar issued revenue stamps from when it was a British protectorate in 1892, to after when it became part of Tanzania in 1993. Zanzibar's first revenues were Indian revenue or special adhesive stamps overprinted ZANZIBAR in capitals, and these were issued between May 1892 and August 1894. Various provisional overprints, some manuscript and some printed, were produced at around 1904, and most of these are rare. In 1905, postage stamps portraying Sultan Seyyid Hamoud bin
History of Zanzibar Africans died each year before ever reaching the island.) Tippu Tip was the most notorious slaver, under several sultans, and also a trader, plantation owner and governor. Zanzibar's spices attracted ships from as far away as the United States, which established a consulate in 1837. The United Kingdom's early interest in Zanzibar was motivated by both commerce and the determination to end the slave trade. In 1822, the British signed the first of a series of treaties with Sultan Said to curb this trade, but not until 1876 was the sale of slaves finally prohibited. Under strong British pressure, the