Okay, so the thinking is this is legit - thank you for the advice. My second question is how much is it worth?
Genuinely seems to be deadstock and I can't find any faults in it (some weird folds, but nothing in either print)

listing1.jpg listing2.jpg listing3.jpg listing4.jpg listing5.jpg listing6 ...

Thanks, I don't think dry rot is an issue, the cotton still feels soft and there's none of that dustiness or residue.
I tried to get a couple more close-up shots of the front logo with my phone camera...

uploaded the original photos now, thanks for the advice

This Megadeth shirt looks too clean and unworn to be a 90s original, right? Of course I'd love it if it was.