MIL-T-52485B, MILITARY SPECIFICATION: TRAINING AID, MODEL, TERRAIN, CONTOUR HILL, ELONGATED, MAP READING (04-AUG-1981) [NO S/S DOCUMENT]
MIL-T-52485B, MILITARY SPECIFICATION: TRAINING AID, MODEL, TERRAIN, CONTOUR HILL, ELONGATED, MAP READING (04-AUG-1981) [NO S/S DOCUMENT]., This specification covers a model contour hill used for training purposes.