The initial printing which was issued on 1 December 1860 consisted of stamps in a buff colour which were printed on blued unwatermarked paper. Between 1861 and 1884, 28 reprints of the stamp were made in a variety of different colour shades, on paper with a different watermark, and with differing perforations. The first few printings were on unwatermarked paper, while stamps printed between 1863 and 1881 had a
Crown CC watermark. The last few printings which were made between 1882 and 1884 had a
Crown CA watermark. These watermarks consisted of the letters "CC" or "CA" (both referring to the Crown Agents for the Colonies) beneath a representation of a crown. Varieties of some stamps also exist in which the watermarks are inverted or reversed. Another two printings in 1878 and 1879 had a perforation of 14 x 12½. Prior to 1878, the
gutter between the panes of stamps in the sheet was perforated centrally, resulting in the stamps along the gutter having a large wing margin. After 1878, the configuration of the perforator was changed such that wing marginal stamps were no longer produced. In 1883, plans were being made to transfer control of Malta's postal services to the colonial government, and it was therefore proposed that the colour of the halfpenny stamp be changed from yellow to green in accordance with
Universal Postal Union guidelines. In addition, new denominations of stamps would be needed to cater for postal rates to foreign destinations. A printing of ½d stamps in green was made in 1883 but was not issued immediately, while a final printing of the ½d yellow was made in 1884. The transfer of control took place on 1 January 1885 when the Malta Post Office was established. At this point, a new
definitive set of six stamps including the ½d green which had been printed in 1883 was introduced, replacing both the Halfpenny Yellows and the British stamps used in Malta. == Collecting ==