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Rudolph Keppler was a German-American banker who served as president of the New York Stock Exchange.
Image: Fredricks, New York, Public domain · Text from Wikipedia, CC BY-SA 4.0
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Rudolph Keppler was a German-American banker who served as president of the New York Stock Exchange.
Image: Fredricks, New York, Public domain · Text from Wikipedia, CC BY-SA 4.0