No markings (top only)
Base view (top only)
As found
CD 207.2: USA
| No markings (top only) |
Base view (top only) |
|
This recent discovery is the top half of a two part insulator matching an August 20, 1895 patent (US Patent #544,778). The bottom portion has not been found. Note the indent intended to allow a tool to tighten the top down as shown in the patent.
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