Amerikaans gasmasker ''C.E. Box Respirator'' (ca. 1915-1918), met gele filterbus en instructieboekje Amerikaans gasmasker ''C.E. Box Respirator'' (ca. 1915-1918) da pam Military publications index of graphic training aids and devices List of publications for training, including training films and film strips : basic field manual - USA Basic Field Manual, FM 21-6 List of training films, film strips, and film bulletins - USA Basic Field Manual, FM 21-7 List of training films, film strips and film bulletins - USA War Department Basic Field Manual, FM 21-7 List of war department films, film strips, and recognition film slides - USA War Department Basic Field Manual, FM 21-7 List of war department films, film strips, and recognition film slides, April 1945 - USA War Department Field Manual, FM 21-7