Legit Check Trifold Wallet

Hello everyone! I know nothing about designer and was wondering if this is authentic? I have low hopes, but would be really cool if it was! I tried to get the best pictures that I could. On the button thing it says “Echt 2 Prym”. The serial number that’s stamped says “035 922 0294” if that matters. If it is real it’s most definitely vintage.