Items
Relation is exactly
American Institute. Electrical Section
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[D8711AAJ], Letter from New York Electrical Society, Joseph Wetzler to Thomas Alva Edison, June 24th, 1887 1887-06-24 -
[D8711AAL], Letter from New York Electrical Society, Joseph Wetzler to Thomas Alva Edison, June 29th, 1887 1887-06-29 -
[D8711AAR], Letter from New York Electrical Society, Joseph Wetzler to Thomas Alva Edison, August 29th, 1887 1887-08-29