The “Beetle,” 1961.
This primitive mecha was designed for the US Air Force in the early 1960s to service the nuclear-powered bombers which were then on the drawing board. Needless to say, the nuclear bomber program was cancelled and these monstrosities were not needed after all. Today such work would be done remotely and without a human operator. Despite the smile of the cheesecake blonde those claws were more than capable of tearing her limbs off.
