Items

Items

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  [D8907ACS], Letter from Engineering and Mining Journal, Sophia T Braeunlich to Thomas Alva Edison, November 21st, 1889

  1889-11-21
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  [D8949ACR], Letter from Engineering and Mining Journal, Sophia T Braeunlich to Thomas Alva Edison, New Jersey and Pennsylvania Concentrating Works, December 6th, 1889

  1889-12-06