I can’t remember if it was just a FS ad or auctions... but both had been available publicly that’s for sure... maybe just once for 2’s (might have been part of a set as well, can’t remember) and a couple times for 2.5’s. I even sold a rack of the 2.5’s which I regret.
Does a raffle count? There was a raffle (maybe it was @Chbyfngr’s raffle) for a set of PCAs, usually I always picked the number 11 the raffles. But that time i was with a friend and for some reason i asked him which number should i pick (he picked 23 if remember correctly). and then on the day of the draw of course number 11 wins it. It was not a nice day to say the least.
I'd like to go back to when I sold my Paulson Pharoahs and not do it. Wish I had not sold those, but I didn't think I'd ever be able to afford getting the set to the number of chips that I wanted, so I sold them. I think for .95 per chip at the time. This was about 4 or 5 years ago now.