The first fighter monoplane in USAAC service around 1933 it was also the last with open cockpit, fixed landing gear and externally braced wings. With their colorful livery the Peashooters enjoyed a peaceful beginning which turned into a old age hazardous operational life. The “281” export models fought in both China and Spain (only a single example) prior to WW2. Later on some of them, still in USAAC service in late 1941 did what they could in the Philippines (both by Americans and the locals) and Panama. To say they were outclassed is more than an understatement.
Superb symmetry in this photo. It was a cute little thing.