True one-of-a-kind CD 230.2 Armstrong's 51C1A

By Richard Wentzel; posted January 29, 2012

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This has to be the only example of a clear glass insulator being worth more than it's amber counterpart. An Armstrong employee fished the mold for an Armstrong's 51C1A out of storage, took it to the experimental furnace, and made two clear examples. Neither were annealed, and the other example exploded. You are looking at the only clear Armstrong's 51C1A in the universe. It's crudely formed and full of folds in the glass. From the collection of Pete Horner.

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