Technically it's a J 9, This individual was originally ordered by the Swedish Air Force but never delivered due to the embargo. 60 Planes where delivered to Sweden and the rest transferred to USAAC as P-35A, most of them where sent to the Philippines, some still with SwAF insignias.
Edit: A bit tired, that's not a J 9/P-35 but a '2PA', the 2 seat version (with a rear gunner), original Swedish designation B 6, only two of 52 ordered reached Sweden, the rest where transferred to USAAC as AT-12.