Army Navy Sales Military Mountaineering Manual TC 90-6-1 5.5 X 8.5in Blue. Operations on glaciers and snow covered mountains fixed alpine paths also master training program. 139 pages photos and illustrations. Specifications for Military Surplus Military Mountaineering Manual TC 90-6-1: Manufacturer: Military Surplus Color: Blue Fabric/Material: Paper Package Contents: Military Surplus Military Mountaineering Manual TC 90-6-1 Army Navy Sales BK087: Military Mountaineering Manual TC 90-6-1 5.5 X 8.5in Blue