The George V threepence series, lasting throughout George V's reign from 1911 to 1936, features the Australian coat of arms with ADVANCE AUSTRALIA across the scroll on the reverse, THREEPENCE up the top, and the year of issue down the bottom. The obverse features the crowned bust of King George V facing to the left and the legend, GEORGIVS V D.G. BRITT : OMN : REX F. D. IND : IMP (George V, by the grace of god, Ruler and King of Britain, Defender of the Faith, Emperor of India).
Like most George V series, this a very popular series to collect. In lower grade, all dates can be acquired at reasonable expense excluding the 1922/1 overdate threepence. Type set collectors of mint state pieces would do well aiming for the 1918-M, 1921-M, 1934, 1935 and 1936 for good strikes and value. This series was struck at the London, Sydney and Melbourne mints. From 1911 to 1915 the London mint struck the threepence. From 1916 to 1921 the Melbourne mint struck threepences bearing the mintmark M under the date. From 1924 to 1926 the Melbourne mint in conjunction with the Sydney mint struck threepences and the rest of the series was struck by the Melbourne mint.