Made in France 1914 ...

La première veste de camouflage au monde est sortie de l’atelier de Louis Guingot en 1914, rue d’Auxonne à Nancy. Cet artiste vosgien d’origine, né à Remiremont en 1864, a inventé le motif dit « léopard ».

The first camouflage jacket in the world came out of the workshop of Louis Guingot in 1914 in Auxonne street at Nancy. This Vosges original artist, born in Remiremont in 1864, invented the motif called "leopard".

http://www.vosgesmatin.fr/vosges/2014/09/15/un-vosgien-pionnier-du-camouflage

What's old is new again...

Flintlock era hunters knew about camouflage.  I've an illustration in my book of a guy disguised as a (walking) tree (blind).  If you go back earlier, the Ottomans and the Grenzers were bushwhacking each other from camouflaged positions.  Here in America the Red Man practiced it a lot too.

Yes it isn't anything new, that is for sure:

History of the Northern American Indian, David Zeisberger, p 92

"That they in general wear a white blanket, which, in war time, they paint with various figures, but particularly the leaves of trees, in order to deceive their enemies when in the woods.Their mogganes are made of deer-skins, and the best sort have them bound round the edges with little beads and ribbands. On their legs they wear pieces of blue cloth for stockings,some like our soldiers spatterdashes—they reach higher than their knees, but not lower than their ankles. They esteem them easy to run in. Breeches they never wear, but instead thereof two pieces of linen, one before and another behind. The better sort have shirts of the finest linen they can get, and to these some wear ruffles; but these they never put on till they have painted them of various colours which they get from the pecone root and bark of trees, and never pull them off to wash, but wear them till they fall to pieces. They are very proud, and take great delight in wearing trinkets, such as silver plates round their wrists and necks, with several strings of wampum (which is made of cotton, interwoven with pebbles, cockle-shells, &c), down to their breasts; and from their ears and noses they have rings or beads which hang dangling an inch or two. The men have no beards, to prevent which they use certain instruments and tricks as soon as it begins to grow. The hair of their heads is managed differently, some pluck out and destroy all, except a lock hanging from the crown of the head, which they interweave with wampum and feathers of various colours. The women wear it very long twisted down their backs, with beads, feathers, and wampum, and on their heads most of them wear little coronets of brass or copper; round their middle they wear a blanket instead of a petticoat. The females are very chaste, and constant to their husbands, and if any young maiden should happen to have a child before marriage, she is never esteemed afterwards. As for their food they get it chiefly by hunting and shooting, and boil or roast all the meat they eat. Their standing dish consists of Indian corn soaked, then bruised and boiled over a gentle fire for ten or twelve hours. Their bread is likewise made of wild oats, or sun-flower seeds. Set meals they never regard, but eat when they are hungry."