Herbert Hoover Autographed Stanford University Calling Card US President PSAStanford University calling card autographed by the thirty first President of the United States of America Herbert Hoover Signed in vintage fountain pen on the obverse of this premium and standard sized Stanford University, California calling card Hoover maintained a lifelong affiliation with the world reknowned institution, graduating from its very first class in 1891, and later established the Hoover Institution on War, Revolution and peace Hoovers