Barn insulator???

By Howard Simon; posted January 27, 2008

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Hey Folks, Someone gave this to me and said it was a "barn" insulator. I've never heard of anything like that so I'd appreciate any help in solving the mystery. The specs: The item is two-piece glass about 4.5" long X .75" wide. Above the bracket is what looks like two small wire grooves. The unit is octangular (8-sided) though the seams stop at the base except for the mold lines which leads me to believe the base wasn't applied separately. The only markings I can find are a small 'CL' just below the bracket groove. Thanks in advance for your help.

Howard

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