Could be 750 lb GP
Explain. This is the shell of a common travel pod used on F-16 and F-15 aircraft. I am told, they were used somehow to deliver napalm in Vietnam. But, the bodies have been converted to pack a pilots luggage and -5 equipment (chocks, probe covers, and grounding cords.)
It may have been dropped by an f-16 if the aircraft were hit by AA. The pilot would drop all stores that he could, in order to return to base.