Bidspirit auction | Pyrex Butterfly Gold & Red-Orange

Pyrex Butterfly Gold & Red-Orange Set - A five-piece collection of American molded opal glass kitchenware featuring fired-on color finishes. The base of a yellow casserole dish bears an embossed circular mark with readable central characters spelling PYREX and lower text reading OVENWARE (Photo 3). The base of a rectangular refrigerator dish features a clearly embossed circular mark with a top line reading 501 - B, a second line reading T.