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Insulators |
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| Insulators of glass or pottery have been made for use on telegraph or telephone poles since 1844. Thousands of different styles of insulators have been made. Most common are those of clear or aqua glass; most desirable are the threadless types made from 1850 to 1870. |
| Category
| Insulators |
| Pattern or Item
| American Telegraph Telephone Co |
| Description
| No. 121, Purple |
| Year
| 1999 |
| Price
| Login for Price
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