Photograph showing three unidentified men outdoors, standing in a row. The man in the center is looking down at a box-shaped device he is holding in one hand. The photograph may have been taken at Rankin field in Portland on August 17, 1930, before brothers Tex Rankin, Dick Rankin, and Dud Rankin began an attempt later that day to set a record for endurance flying. The photograph may depict observers inspecting the official barograph that the Rankins would use during their flight. A barograph is an instrument that measures and records atmospheric pressure. The man in the center of this photograph may be L. B. Hickam, leader of the contest committee of the local chapter of the National Aeronautics Association, who was among the official observers of the Rankins’ attempt at the endurance record. Also see image Nos. 371N6017, 371N6022, 371N6023, 371N6024, 371N6025, 371N6060, 371N6064, 371N6103, 371N6120, 371N6121, 371N6128, 371N6129, 371N6130, 371N6132, 371N6133, 371N6134, 371N6138, 371N6199, 371N6206, 371N6207, 371N6221, 371N6227, 371N6228, 371N6233, and 371N6234.