I have these Autographs, each in a postmarked envelope: Calvin Coolidge, Herbert Hoover, Wm Howard Taft, A. W. Mellon, sec. treasury, Oliver Wendell Holmes, and Hamlin Garland. Where can I get them authenticated and certified in Michigan?
Anne Rock, Bay City, MI
Check with your local museum or one in a major metro area ! I don`t think they would e worth much but check anyway !