MS-223: William F. Yeager Aviation Collection
Left hand side view of the Keystone Y1B-4, a military aircraft, on the ground.
Special Collections and Archives; Wright State University Libraries
Digital Services Department; Wright State University Libraries
Special Collections and Archives provides reprints or digital copies of our materials for a fee. For further information please visit their website or call (937) 775-2092.
ms223_035_033_001; Keystone; Y1B-4; Military