Items
recipient is exactly
Armstrong, S F
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[LB025050B], Letter from Thomas Alva Edison to S F Armstrong, Chicago St Paul and Kansas City Railway, August 9th, 1887 1887-08-09 -
[LM013549B], Letter from Thomas Alva Edison to Chicago St Paul and Kansas City Railway, S F Armstrong, July 7th, 1887 1887-07-07