DescriptionMinnesota Mining & Manufacturing Company Autographed "3M" Stock Minnesota, 1904, green. Issued to and signed by E. B. Ober (future president). Also signed by John Dwan as secretary. Dwan was the first secretary of this company, 3M founder, and attorney in Two Harbors, Minnesota. Henry S. Bryan signs as the company's first president. He was also a 3M founder and Chief of Motive Power at the Duluth and Iron Range Railroad. A truly historic stock! Accompanied by COA from PSA/DNA.
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