03/31/2008. Remarks by Jack McKillop: "A lineup of the aircraft of the 34th Pursuit Squadron, 17th Pursuit Group, based at March Field, Riverside California. The 35 P-12Ds had originally been ordered as P-12Cs but the aircraft had minor refinements and were redesignated; they were delivered between February 25 and April 28, 1931."

Read the type remarks on page 4901.