3 3/4" X 3 1/8" (92mm X 77mm)
No markings .
Picture courtesy Bob Berry |
3 3/4" X 3 1/8" (92mm X 77mm)
(skirt recess embossed) "B inside an O" {Canadian Ohio Brass}
Picture courtesy Barrett Nicpon |
U-2571: Canada
3 3/4" X 3 1/8" (92mm X 77mm)
No markings .
Picture courtesy Bob Berry |
3 3/4" X 3 1/8" (92mm X 77mm)
(skirt recess embossed) "B inside an O" {Canadian Ohio Brass}
Picture courtesy Barrett Nicpon |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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