SPECIAL COLLECTIONS
*Map 984 United air lines. 01940 eee Mainliner vacation map, the main line airway to the nation's greatest vacationlands east and west. [Chicago?, 19407] Size, 27 1/2 x 44 1/2 inches. Scale of flying hours (computed) 32 minutes to 1 inchs A pictorial map of the United States. 1. Airways-—Ue SemLlapse Ze Ue SemDesore & trave—-LiapSe Se lapse Pictoriale
 
1 1940