New Old Stock vintage aluminum chassis with cabinet for building a tube amplifier , preamplifier or power supply.   Could be used for ham radio or Hi Fi.    Has an enclosed box chassis about 1 inch thick with cover and front and back panels.    All aluminum with hammertone paint.    Some minor scuffs from storage.    Measurements are about 8 1/8" wide by 6 1/4" deep by 5" tall.