I’ve got a 22 quart pressure cooker that I don’t use (It was great grannies and is old enough to concern me) and a 16 quart cooker that I use to weaponize salsa in the fall.
Just don't make booze in it.
/johnny
Take it down to your local home extension office and they'll check it out for free. You can find them in the county government pages of the phone book or look online. A 4-H kid can also direct you to them.