2019 $1 Celebrating 25 Years of Postal and Numismatic Cover Envelope Privy Mark PNCThis postal and numismatic cover marks 25 years since Australia Post released its first such cover in 1994. The commemorative cover houses a coin from the Great Aussie Coin Hunt range, which features an Australia Postie on a pushie. The coin is a special release of the $1 A coin in the series that features the Australia Post privy mark, a small envelope featured on a limited number of A coins. An enlarged iteration of the privy mark is depicted in the