original late 1930's patented "master" cold-rolled steel portable toolbox designed and fabricated by master metal products inc., buffalo, ny. the vintage industrial tool box contains two front clasps flanking a centrally located cabinet lock with spring-loaded latch bolt. original pressed steel drop handle with riveted joints. the original baked green enameled finish remains largely intact. measures 14 x 6 1/2 x 7 inches.