Performance Computer, Type CPU-35/P with TF-33-P-3 Engines, for the B-52H Stratofortress Long-Range Multirole Bomber, USA.
The B-52H was the final model in the B-52 series. Boeing-Wichita built 102 aircraft for delivery in 1961-1962 to the Strategic Air Command. The H model was an improved version of the B-52G with the major change done to the powerplants.
This is an original rare piece of military history, it measures 8 inches in diameter.