Unembossed in sage attributed to the California Glass Insulator Co. |
Emerald green marked POSTAL in the ear |
CD 210:
|
Unembossed in sage attributed to the California Glass Insulator Co. |
Emerald green marked POSTAL in the ear |
This CD is typically used for telegraph lines and the top groove it thought to help with lines over hills where there would be downward stress on the wires.
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