5 x 7 glass plate negative taken by Rosenfeld and Sons on July 24, 1920. View of the cutter SHAMROCK IV at the 1920 America's Cup. This is a long view of the starboard side of the vessel under sail during the 5th race. SHAMROCK IV was a British contender designed by Charles E. Nicholson and built by Camper C. Nicholson in Gosport, England, 1914. Handwritten on original negative sleeve: 4259-F-A / International Yacht Races 5th Race / Shamrock / Box 547". Date stamped: "JULY 24 1920". CREDIT LINE: Mystic Seaport, Rosenfeld Collection.