Everest’s Experimental Test Laboratory Type L-2 jacket. Early and uncommon green jacket has a label sewn inside the collar which reads, “Experimental Test Sample, Clothing Branch, Aero Medical Laboratory.” Everest’s leather name patch is sewn to left breast, and jacket features two front pockets, a small zippered pocket and pen pocket to the left arm, and knitted cuffs and waistband. In fine condition, with a couple small pulls and holes to waistband, and a small repair to lower left. RRAuction COA.