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 Electricity Corporation Zanzibar Electricity Corporation Zanzibar Electricity Corporation (ZECO) is a state owned utility firm that provides transmission and distribution service of electricity in the Zanzibar Archipelago. The firm was incorporated in 2006 as the successor of the State Fuel and Power Corporation and is wholly owned by the Revolutionary Government of Zanzibar. Electricity in Zanzibar dates back to the early 1900s. In 1908, the first coal fired generator was installed on the island to power Stone Town. In 1954 the coal plants were abandoned and new diesel generators were installed by the British East Africa Company. In 1980 the main island