TM 9-1240-271-34&P - Periscope M118E1
TM 9-1220-231-34&P - Ballistic Drive M15
TM 9-1220-220-34 - Ballistic Drive M10
TB 43-0211 JOAP for Leaders
TM 9-1240-315-35 - Periscope M37
FM 3-34-331 - Topo Surveying.pdf
TM 5-803-14 - Site Planning and Design.pdf
TM 9-1240-272-34&P - Mount Periscope M119