2012 $1 Famous Battles In Australian History Kokoda 1oz Silver Coloured Proof CoinThe Kokoda Track (Trail) Campaign was part of the Pacific Theatre of the Second World War and was critical to the defence of Australia, from July 1942 to January 1943. The coins reverse depicts an Australian soldier wearing Second World War jungle kit. The background incorporates a printed historical image of soldiers on the Kokoda Track, and the inscription KOKODA 1942 1943. The Perth Mint's P mintmark is also incorporated into the design.