| This is a very common later transposition style insulator, used on rural telephone lines. This style was used for swapping the positions of two lines. This would reduce the interference that would otherwise be caused by two lines running parallel to each other for too long a distance.
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| Dimensions: |
3 7/8" H x 3 1/4" W |
Primary
Embossing: |
HEMINGRAY
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Years Produced: |
1947-1960s |
| Style Number: | 56 |
| Usage:
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Telephone Rural
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