New Eng Tel & Tel (arc)
Picture Courtesy Bob Berry
New Eng Tel & Tel (straight)
Picture courtesy Bob Berry
base embossed, segmented threads
Picture courtesy Bob Berry
base embossed only
Picture courtesy Bob Berry
CD 110.5: USA
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New Eng Tel & Tel (arc)
Picture Courtesy Bob Berry |
Picture courtesy Bob Berry |
Picture courtesy Bob Berry |
Picture courtesy Bob Berry |
This style is made by the National Insulator Co. to the Frank L Pope patent to allow the insulator to be replaced without untwisting the tie wire. This patent significantly predated the similar Barclay patent.
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