Browse Items (2 total)
- Source is exactly "The William P. and Moya Olsen Lear Papers (2000-06-20), Box 207, Folder 1"
[Advertisement poster for Learadio aircraft equipment]
![[Advertisement poster for Learadio aircraft equipment]](https://digitalcollections.museumofflight.org/files/square_thumbnails/4d26f88211d186cf0f03e56ae727664b.jpg "[Advertisement poster for Learadio aircraft equipment]")
Advertisement poster for Learadio aircraft equipment, circa 1931-1939.
The most famous airport in the world -- Historic Roosevelt Field [map]
![The most famous airport in the world -- Historic Roosevelt Field [map]](https://digitalcollections.museumofflight.org/files/square_thumbnails/3483967fe5cd3223324fc8cbbc20e01b.jpg "The most famous airport in the world -- Historic Roosevelt Field [map]")
Lithographic map of Roosevelt Field, Long Island, New York, circa 1931-1939. Several locations are noted on the map, including Learadio Laboratories (location "J").