Sheikhdom of Kuwait In the early 20th century, Kuwait immensely declined in regional economic importance, mainly due to many trade blockades and the world economic depression. Before Mary Bruins Allison visited Kuwait in 1934, Kuwait lost its prominence in long distance trade. During World War I, the British Empire imposed a trade blockade against Kuwait because Kuwait's ruler (Salim Al-Mubarak Al-Sabah) supported the Ottoman Empire, who was in the Central Powers. The British economic blockade heavily damaged Kuwait's economy. The Great Depression negatively impacted Kuwait's economy starting in the late 1920s. International trading was one of Kuwait's main sources of income before oil.
Postage stamps and postal history of the postal convention states of India was never used. Gwalior issued a total of 137 stamps and 94 official stamps from 1885 till 1949. Jhind is another of the cis-Sutlej states which signed a postal convention on 1 July 1885. Having an area of just , the territory of Jind, like all the Phulkian states, was fragmented; comprising three main enclaves and some isolated villages. The Sikh ruler of Jind, Raja Ranbir Singh was a minor at the time of signing of the postal convention; the state being ruled by a Council of Regency at that point in time. Prior to becoming a convention state, Jhind