(base) American Insulator Co.
Picture Courtesy Ray Klingensmith
CD 145.4: USA
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Picture Courtesy Ray Klingensmith |
This insulator is an American Insulator Company style dug at the at the site of the Lyndeborough Glass Works of Lyndeborough, NH. It is the only known style that has the paraffin groove patented by Samuel Oakman Nov 13, 1883.
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