American athletes vie in Philadelphia Contests in lots of events.
Full title reads: "Future Olympic Champions. American athletes vie in Philadelphia Contests".
United States of America (USA).
Various shots of crowded stadium. Shots of various athletics events (some in slow motion)- including sprint relay race, high jump, hurdles, shot putt , distance races, pole vaulting.
N.B. Item found in Unidentified Gazettes reel.