schiffer military/aviation history U.S. combat helmets of the 20th century mass production / Mark A. Reynosa U.S.A.F. Unit Code Letters / by Roger A. Freeman and George Pennick Civil defense against atomic warfare a selected reading list : a list of official reports of the U.S. Atomic Energy Commission and other Government agencies, … Swords and Sabers of the Armory at Springfield / by Burton A. Kellerstadt ; edited by Thomas J. Wiltzius List of research reports for sale U.S. naval officers : their swords & dirks / by Peter T. Tuite ministry of supply. american declassified reports on atomic energy Supplement to daily list … Air navigation attack computer : part no. FAA-160B ; FSN 6605-435-1481 (Felsenthal Instruments) 22040