In 1940 the Australian Penny was struck at both the Melbourne and Perth branches of the Royal Mint. The Melbourne Mint piece features no mint-mark while the Perth Mint piece can be differentiated by a small dot between 'KG' - the designers initials, which are located on the right of the reverse . The Melbourne Mint produced 4,075,200 pieces which was substantially larger than the 1,113,600 pieces struck at the Perth Mint. As a result the Melbourne variety is reasonably affordable in circulated grades, only becoming somewhat valuable in mint-state.