An AQM-34 model (looks like an AQM-34L to me), ready for take-off. The camouflage looks surprisingly modern for a 1973 photo! The lower side color appears identical to that of the Hercules pylon, which should make it FS 36622. The top color is difficult to guess, it looks like a ADC gray (FS 36473) or possibly US Navy gull gray.
Photograph by Larry Engesath, February 1973