5 1/8" X 4 3/8" (130mm X 111mm)
No markings {Lima}
Picture courtesy Ken Willick |
U-376: USA
5 1/8" X 4 3/8" (130mm X 111mm)
No markings {Lima}
Picture courtesy Ken Willick |
U number assignment by Jack Tod. Note this insulator was made to the Etheridge patent and has a unique pinhole to lock to a mount. US patent 676,881 on May 9, 1901.
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