4 7/8" X 3 3/4" (123mm X 96mm)
(large skirt incuse) A40 {API}
Picture courtesy Bob Berry |
4 3/4" X 3 7/8" (120mm X 100mm)
(large skirt incuse) A47 {API}
Picture courtesy Bob Berry |
U-2620: Australia
4 7/8" X 3 3/4" (123mm X 96mm)
(large skirt incuse) A40 {API}
Picture courtesy Bob Berry |
4 3/4" X 3 7/8" (120mm X 100mm)
(large skirt incuse) A47 {API}
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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