Revenue stamps of Zanzibar 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 Mahommed bin Said were overprinted "Revenue", and sometime later, 1 rupee surcharges appeared on this issue. Between 1907 and 1908 various
Zanzibar of 3.1 percent. The population of Zanzibar City, which was the largest city, was 205,870. Around two thirds of the people, 622,459, lived on Unguja (Zanzibar Island), with most settled in the densely populated west. Besides Zanzibar City, other towns on Unguja include Chaani, Mbweni, Mangapwani, Chwaka, and Nungwi. Outside of these towns, most people live in small villages and are engaged in farming or fishing. The population of Pemba Island was 362,166. The largest town on the island was Chake-Chake, with a population of 19,283. The smaller towns are Wete and Mkoani. Mafia Island, the other major island of