Inscribed: Obverse: "MARK TWAIN / CENTENARY OF HIS BIRTH / MDCCCXXXV-MCMXXXV / ALWAYS DO RIGHT / THIS WILL GRATIFY / SOME PEOPLE / AND ASTONISH THE / REST." Enclosed typed note: "It gives us great pleasure to present with our / compliments this plaquette of Mark Twain, / struck in commemoration of the centennial / of his birth. The well-known sculptor, / John Flanagan, created this characteristic / likeness of America's much loved writer."

Markings: Marked on edge: "MEDALLIC ART CO. N.Y."