2021 Heroes of the sky privymark set

The 2021 $1 Heroes of the Sky - RAAF Set 4 Coins Mintmarks & Privymarks Set is a tribute to the aviation pioneers of Australia. This set includes four $1 coins, each with a Mintmark and a Privymark, celebrating the centenary of the Royal Australian Air Force. The coins feature the effigy of Her Majesty Queen Elizabeth II designed by Jody Clark on the obverse, while the reverse designs commemorate the centenary. The set is issued as Australian legal tender and is a significant addition to any Australian decimal coin collection