35 mm black-and-white negative

35 mm black-and-white negative; Carleton Mitchell at the helm of probably 12 meter CONSTELLATION; under sail; during the America's Cup Trials; 1964; handwritten on original envelope "CS 480" and "C-10" (corresponds to original Mitchell contact sheet); handwritten on back of original corresponding contact sheet "C. MITCHELL/ CS - 480/ 9-25-64"; printed on negative frame number "11".