3 5/8" - 3 1/8" - 2 3/4" X 4 1/4" (93mm - 78mm - 70mm X 111mm)
(dome incuse) "B or a P in a oval"
Picture courtesy Bob Berry |
U-2951: Unknown
3 5/8" - 3 1/8" - 2 3/4" X 4 1/4" (93mm - 78mm - 70mm X 111mm)
(dome incuse) "B or a P in a oval"
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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