In case you guys are curious.....
Thats the XS-1-1 serial number 46-062. You can see in the above its call sign is 6062.
First to break the sound barrier. There were three built. XS-1-3 burned up along with its B-50 mothership.
Powered by a XLR-11 reaction motor fueled by LOX (liquid oxgegen) and alcohol it produced 6,000 lbs of thrust.
The switch labeled Vibrator...Is probably the starter vibrator (buzz box) for the engine ignition. Just a guess