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Collectibles--General (Modern)/thomas, loc and sbt insulators

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Expert: - 10/10/2011


Question
I found 6 dual insulators 3 are fully intack but the other three are broken. They are all a brownish color the Thomas looks like a metalic purple.

Answer
Hi Sarah,

Thomas made insulators from the late 1800's through the 1960s -- Can you attach a picture of your items -- I should be able to identify them from that.  I suspect the other makers are LOCKE and Ohio Brass (Used a logo of a B inside an O) and used the term "Silent Type" for their radio treatment --> (S "B in an O" T) as their mark.  

         Thanks, --Bob

Collectibles--General (Modern)

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Bob Berry

Expertise

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.

Experience

I have collected since the early 1970's and have much historical information, as well as knowledge of current insulator values.

Organizations
National Insulator Association (http://www.nia.org)

Education/Credentials
BS & MS in Electrical Engineering

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