Benz Coinz, Thanks , I did go read Mechanical Doubling Damage vs. Hub Doubling. Im learing slow but sure..

I read every thing there, and the pictures help a lot /to understand between the two. Takes a while to know... for sure.. I pretty much know when it's a mechanical doubling,{most are}
I guess I just wish I was wrong and it would be the real thing once.
Im pretty sure I have a 72 dd.. I would put it on here but can't get a good scan..Just one letter looks doubled..to me, and thats the W but im pretty sure it is a true doubled die.. No ideal even what it would be worth.. But happy to {at least think} I found one

May???be
Again thanks for your help and information.