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.

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


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