retro vintage US Army olive drab canvas duffle bag/knapsack/backpack

1970s vintage US Army combination duffle bag / backpack made of olive drab khaki canvas with nylon webbing straps. It measures about 36" long (or high depending on whether you carry it by the handle or wear it on your back) and about 11" square on the bottom.

This pack is worn with staining and a number of small holes and some markings with pen.