On October 9, 2022, Oman Post and Tanzania Posts Corporation launched a Joint Stamp Issue that commemorates the long-standing historical ties between both countries. The stamp illustrates the cultural and architectural contributions of the Sultanate of Oman in the United Republic of Tanzania as it depicts the Zanzibar shoreline with some governmental buildings facing the shore, including the Corniche in Zanzibar and the House of Wonders, the largest and tallest building of Stone Town, which is one of six palaces built in 1883 by Barghash bin Said, the second Sultan of Zanzibar. Both countries issued also a souvenir sheet each. This information was provided by our friend Saravanan from India.