I want to find Bitcoin in old paper wallets

A few years ago, perhaps from 2012 to 2014, Dad received a package from a friend. And yesterday, my dad gave me a package containing paper with metal Bitcoin Coin. I thought it was a kind of bitcoin paper wallet. There is an unusual format for paper wallets.

There are three lines of string along with the QR code.

String is the following format:

ZT 8 digit number

18 -digit number

M12-02-12 // Perhaps it is the date of the paper wallet. I think.

The QR code represents a combination of these strings.
18 -digit number .zt 8 digits number go go

I think it is following the format of some companies or services, not the BTC address. How can I find a pattern to recover Bitcoin?