2022-03-242022-03-241951-02-21https://repository.tcu.edu/handle/116099117/51428Letter from Oswald Ryan, vice chairman of the United States Civil Aeronautics Board, to Amon Carter enclosed with statements of Civil Aeronautics Board policy.8x10.5 PaperPrior written permission from TCU Special Collections required to use any document or photographRyan, OswaldCivil Aeronautics Board (CAB)Document