2011 $1 Centenary of RMC Duntoon 1911-2011 PNC. In 2011, the Royal Military College (RMC) at Duntroon celebrates 100 years of preparing officers for service in Australia's permanent military forces. PNC features commemorative Centenary of RMC Duntroon $1 coin and 60 cent stamp. Please contact Adelaide Exchange Jewellers to find out more on this item.