Here we see a Curtiss JN-3 two-seat trainer biplane, with the serial number 621. This was probably A621, which falls into a batch of JN-3s, while 621 was a Bleriot XI.
Copyright IWM Q 67532
How to cite this article:
Rickard, J (16 September 2022), Curtis JN-3 no.621 , http://www.historyofwar.org/Pictures/pictures_curtiss_JN-3_621.html
