Illustrated below are some of the Halfpenny definitive stamps issued during the reign of George the 5th for Australia. The stamps showing a side-face portrait of King George were issued from 1914 until 1936 and were issued in many varieties of colour, watermark,paper and perforation. The earliest issue of the Halfpenny was in bright green (left) in 1915-20 with a watermark of "A" under a two point crown. The second variety of green was issued in 1918-20 with a watermark of "A" under a two point crown in multiples. The third variety of orange was issued in 1918-23 with a watermark of "A" under a two point crown. The Halfpenny was issued again in orange in 1926-30 however the watermark for this variety was "A" under a sloping crown in multiples.Examples of each watermark are shown below the stamp.