TB 1240-1 GUN, AUTOMATIC, 37-MM, M4 (AIRCRAFT): FAILURE TO FEED. War Dept. (Used) Washington DC: War Dept. july 1942. Soft Cover. 1 page. Very Good. Item #10260 Price: $10.00 See our Home Page before ordering. Add to Cart Ask a Question See all items in Used See all items by War Dept