Duralumin 2 Meter Folding Measuring Stick

Period folding Duralumin measuring stick. It is marked LJM which I believe is the French companyJustin Ledru Manufacture (founded in 1935).It is in good used condition. This is made from Duralumin, which was the same alloy used for the Zeppelin and on Junkers aircraft. Would be a good engineers accessory. Whip this thing out next time you're building a bunker with your unit.