The RAAF Centenary Postal Numismatic Cover is highly collectable, featuring a pictorial envelope with the two stamps from the two stamp issue and a coin from the Royal Australian Mint. The stamps are postmarked - First day of issue | 9 February 2021 | Point Cook VIC 3030

This coin contains the Australia Post envelope Privy Mark and is different to the Mintmark and Privy Mark coins issued by RAM in the four-coin set.