One of a kind loop antenna

A striking loop antenna for the directed reception of broadcasting transmissions, rotatable in order to prevent interference. The wooden bicycle wheel is rotatably mounted on an ebony disk, stamped with a factory mark. At the circumference of the rim are thirty-six celluloid pins, with around it the window windings which are arranged in basket bottom winding. The ends of the winding have been confirmed with two terminals on a ebonite block.