Letter from Rudolf Singer, Stuttgart, Germany, to Wallace Rindskopf, University City, Missouri, October 1, 1938, A3026-00044. Missouri Historical Society Library and Research Center.

Letter from Rudolf Singer, Stuttgart, Germany, to Wallace Rindskopf, University City, Missouri, October 1, 1938, A3026-00044. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/15789 Accessed November 22, 2024.