October 16, 2015. CMOG 54th Annual Seminar on Glass: Pyrex and Material Culture. Pyrex exhibit at the Rakow Research Library at CMOG. This view from the rear of the gallery looking back towards the library entrance. Cases along the right wall presented examples of Pyrex from its earliest inception. The floor to ceiling cases along the left wall contained hundreds of pieces of both early clear and opal Pyrex arranged chronologically, most from the Dianne "The Pyrex Lady" Williams collection acquired by CMOG.