This is on the upcoming releases area on the Perth mint blog: New coins released from 8:00am (AWST) Tuesday 6th March 2018 Swan 2018 1oz Silver Proof Coin https://www.perthmint.com/forthcoming-releases.aspx
I got a few of the 70’s individuals, and 1 set of the 70’s (50 sets) of the gold, silver, and silver, and they are beauticious. I’m not sure why it wasn’t an instant sell out it either. 5000 mintage is pretty high, however. However, when number 2 comes out, I’m sure #2 will go bye, bye. I’m glad I have 4 of the 70’s tucked away.
oh when Apmex sold these gold pieces, they had the first strike PCGS for sale (see below), and they weren't much higher than OMP. Maybe an added $60.00. I jumped on it! Got three of them. And then they had the set of three (gold, silver BU, and silver Proof) for sale, and got one of those bad boys. I wonder if those 21 left on the OMP are their last or if they'll get more. Not sure. https://www.apmex.com/category/16701/perth-mint-gold-swan-coins