Hey everyone, I'm not even sure if I'm posting this in the right place, so please redirect me to the right spot if this isn't it. Anyways, I am fairly new to Pin Trading, and back when I started, I bought a small lot of like 25-30 pins off of eBay (which I now realize is a rookie mistake that I won't be making again!) back in April of 2020. As far as I can tell most of them look legit, but the more I think about it, the more uncertain I get about their authenticity. I'm just wondering if anyone could offer me some tips on how to authenticate pins? Thanks!!