CD 322.5: 

6 7/8" - 5 5/8" X 5 3/4"  (175mm - 143mm X 146mm)


No Markings    


Picture Courtesy Bob Berry

This is most likely Pyrex glass but the country of origin is not known for this item.

Note:  Original CD assignment from Glass Insulators From Outside North America published in 1993 by Marilyn Albers & N.R. Woodward.

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