Grave Doubt (Dell 4708)

New York: Dell, 1975. 1st Printing. Mass Market Paperback. Very Good. 0x0x0. First printing. Two light 1 inch creases on rear wrapper edge, otherwise an excellent copy. Binding tight and square, pages clean, bright, and unmarked. 1975 Mass Market Paperback. 208 pp. The discovery of a downed Nazi plane in a swamp reopens a conspiracy decades in the making, and someone is willing to kill to keep it a secret.