![](http://www.alamy.com/thumbs/6/E4806436-50CE-4F7E-A01F-A16B0A39B69A/KYM4MK.jpg)
[Biplane on Airfield, US Signal Corps Aviation School] 36505063705 o
Size: 1867px × 1339px
Photo credit: © Len Collection / Alamy / Afripics
License: Licensed
Model Released: No
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