sentences:  In 1921, Malta was granted a limited form of self-government which led to the establishment of a Senate and Legislative Assembly.To commemorate this, various 1899–1922 definitive stamps were locally overprinted "SELF-GOVERNMENT" and were issued between 12 January and 29 April 1922.Between August 1922 and 1926, a new set of stamps known as the Melita issue was released, with stamps having face values between ¼d and £1.