There’s a lot of vintage Pyrex pots out there. Growing up near Corning New York, one finds an abundance of it. Here’s an example set: https://www.ebay.com/itm/CORNING-WARE-VISIONS-Pyrex-Amber-Co...

I don’t know how much truth is in it - but I have been told there the older brown style are the highest quality glass and have better thermal expansion properties such that they can be used on the stovetop. Meanwhile, more recent incarnations are much more likely to fail (catastrophically).