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The Pyrex insulators were popular for their ability to withstand a larger electrical voltage than the others. Obtaining familiar with the physical anatomy of glass insulators is vital if you need a deeper understanding of what is to come in this...

Such could have been the case to-day had not a CHICAGO man come along and bought that pile of sand. This genius bought the "slide" at wholesale and right away started to sell it at retail. The sale continues and this accounts for the disappearance...