Getting embossed as opposed to incised, and the material becoming glass, it is obviously molded in as opposed to stamped. It's a crystalline material and was probably the big part of the very first glass employed by humans.
Pyrex fridgie <3
Vintage Pyrex. butterfly gold. My mom had these when we were younger.
Until recently, I didn’t know about the existence of European Pyrex. This Pyrex is marked JAJ like its English Counterpart, but was produced in patterns and colors for the European market. This pattern is Fiesta, a JAJ pattern typically found in.