Vintage Retro Moderne sterling silver tank track tread necklace. Post war classic design inspired by the mechanical tank tracks and treads. Measures 15-1/2" x 3/8" and weighs 21 grams. Hallmarked "Sterling" on the locking fold over clasp. The links are slightly rounded, plain on the outside and ribbed on the inside. In excellent well babied condition, circa 1940-50.