This bag is constructed of heavy duty green and white military canvas with leather and metal fittings. Thick leather straps are adjustable by buckle at the bottom for length; and at the top for slack from back plate. Both straps are anchored at the top by a large D ring. The left strap is hinged by a metal pin half way down, while the right is breakable by way of a hook and ring. Not sure what this was for, possibly ease of exit from a loaded pack, or to allow for strap accessories.
Two rods running the length of the back panel give the bag rigidness. An inch wide metal bow at the bottom of the bag is spanned by a cotton strap to offer padding and breathability at the waist. Top closure is completed by a cotton draw string through aluminum grommets and a canvas flap secured by leather straps. There is also an internal gator with cotton tie cord to further secure contents from the elements. One external pocket on the front of the pack is also secured by leather straps and metal buckles.
This pack is sold with two original lashing straps to secure goods to the top flap via metal loops.
Soldiers returning from WWII who took up mountaineering as a hobby and sport used packs just like this early on. These designs were later taken and adapted by outdoor companies for use specifically as outdoor products. The designs of many early packs from companies like Gerry, Class 5, The North Face and Kelty can be seen in this pack. It is a great piece of military history and outdoor history.
Strap harness markings read:
One of the top flap straps is stamped with the Swiss cross and the letter M
7 inches deep at base
19 inches tall
15 inches wide at base
9 inches wide at top
Weighs approx 5lbs