Technical Sergeant William J. Brady was a B-17 radio operator and tail gunner assigned to the 493rd Bomb Group, 860th Bomb Squadron at Debach, England. He flew 25 B-17 missions.
This tiny metal and glass compass is only 5/8 inch in diameter. A part of escape and evasion equipment, a small compass could be more easily hidden if the owner was captured by the enemy. Some button compasses were designed to be part of a uniform button.