CD 529.7: England
3 ⅝" x 4 ¼" (92mm X 108mm)
(front skirt) PYREX / JP
(rear skirt) 5633
Picture courtesy Shaun Kotlarsky
JP stands for Jobling Purser who licensed Pyrex glass from Corning. CD assignment by Dario Dimare May 20, 2013.
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