TB 200-2 GUNS, MACHINE,CALIBER .30 AND .50: USE OF HEADSPACE AND TIMING GAGE. War Dept. (Used) Washington DC: War Dept. January 1942. Soft Cover. 2 pages. Very Good. Item #10226 Price: $15.00 See our Home Page before ordering. Add to Cart Ask a Question See all items in Used See all items by War Dept