commemorative plaque

Plaque, presented to replica schooner yacht AMERICA, metal crest mounted on teak shield, cast in medal "U. S./ NAVAL/ ACADEMY/ EX TRIDENS/ SCIENTIA". Metal plate mounted on shield at bottom reads "PRESENTED TO/ THE YACHT "AMERICA"/ MR. RUDOLPH J. SCHAEFER, OWNER/ BY/ REAR ADMIRAL DRAPER L. KAUFFMAN, U. S. NAVY/ SUPERINTENDENT UNITED STATES NAVAL ACADEMY". Metal crest 5-7/8" x 4-5/16".