In my search for used canning jars, someone responded to my craigslist ad with quart jars that are Ball, 1930's, with zinc lids. Does anyone know if these are the type that I can use with the modern 2-peice lids, and in my pressure canner? It is a bit of a drive to get them, so I just want to save some time and gas if anyone knows the answer. It seems impossible to get accurate info from people who answer an ad! But if these jars are usable, I want 'em! Thanks!