Member of the famous Steinway piano family, who was a member of the Collectors Club of New York and Board of Trustees of the Philatelic Foundation (1883-1957). Partly-printed DS, signed “Theodore E. Steinway,” one page, 4.25 x 7, March 6, 1919. Union Square Savings Bank document certifying that Steinway "is the Treasurer for the Association for Stamp Exhibitions, Inc." Signed at the conclusion in green fountain pen by Steinway. In fine condition. Encapsulated in a PSA/DNA authentication holder.
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