Questions related to collecting Glass Insulators and porcelain insulators - I can provide historical information as well as current collector values. I am also interested in purchasing insulators I need for my collection.
I have collected since the early 1970's and have much historical information, as well as knowledge of current insulator values.
National Insulator Association (http://www.nia.org)
BS & MS in Electrical Engineering
Insulators date back to the 1840's for Telegraph, 1870's for Telephone, and 1890's for electrical transmission. There is a tremendous amount of history represented by these everyday objects!
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Thanks for your question. We identify this style as a CD 106. This style was made by many different companies including Lynchburg glass. Lynchburg made a number if insulator styles but in lower quantities
I would assume your Armstrong No. 3 insulator is in clear glass. The Armstrong cork company bought out the Whitall Tatum glass company in the 1940s and made insulators through the 1950s. We identify
Thanks for your question. We identify your Hemingray No. 12 as a CD 113. It is a telephone insulator and is an exchange style which supports two wire grooves. These were made by Hemingray glass (based
GLADCO confirms is it likely an insulator -- this is similar to rests for heavy insulated cables. The color is called skyglaze and it typical on modern insulators. GLADCO stands for Gladding Ceramic
This could be some form of a cable holder, but I'm not sure this is an insulator. What is the marking stamped on the top? Where did you find this item? Thanks, --Bob
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