CD 631: England
4 3/8" X 3 1/2" (111mm X 89mm)
No embossing
Picture courtesy Tommy Bolack |
This is a very early insulator glass insulator that is similar to the CD 630 Bright's patent.
Original CD assignment from Glass Insulators From Outside North America published in 1993 by Marilyn Albers & N.R. Woodward.