was significantly thinner than the modern version and the diameter also measured slightly less. The £1 coin ceased to be legal tender on 15 October 2017, to coincide with the withdrawal of the circular £1 coin in the UK. The UK's new twelve-sided £1 coin is the only £1 coin that is legal tender on the island. The first decimal issues continued with the same obverse as the last pre-decimal issues until 1985, when Raphael Maklouf's portrait of Queen Elizabeth II was added. Ian Rank-Broadley's portrait of the Queen has appeared since 1998. Designs on the reverses of Guernsey's decimal coins are: Banknotes In 1827, the States of Guernsey introduced one-pound notes, with the Guernsey Banking Company and the Guernsey Commercial Banking Company also issuing one-pound notes from 1861 and 1886, respectively. The commercial banks lost their right to issue notes in 1914, although the notes circulated until 1924. Also in 1914, the States introduced five- and ten-shilling notes, also denominated as 6 and 12 francs. In 1921, States notes were over-stamped with the word "British" to signify the island's conversion to a pound equal to sterling. From 1924, ten-shilling notes were issued without any reference to the franc. The five-shilling note was discontinued. In 1941, during the German occupation, notes were introduced in denominations of 6 pence, 1 shilling 3 pence, 2 shillings 6 pence and 5 shillings. The first to be issued were the 5-shilling and 2s 6d notes. They were printed on States of Guernsey watermarked paper; the height of the notes was inches; the length of the 2s 6d note was inches and that of the 5s note was inches. The 5s note was printed in black and red with the Seal of the Bailiwick in red on the reverse. The 2s 6d note was printed in light blue with the denomination in orange and the Seal of the Bailiwick in royal blue on the reverse. From 1942, the 1s 3d notes were overprinted to produce 1-shilling notes. In 1945, following liberation, £5 notes were introduced and production of all denominations below 10 shillings ended. The 10 shilling note was replaced by the 50-new-pence coin in the run up to decimalisation. £10 notes were introduced in 1975, followed by £20 in 1980 and £50 in 1994. Although £1 and £2 coins have been introduced, the £1 note still circulates. A commemorative £20 note was issued in