Model, of a three-wheeled heavy wagon, or cart, unsigned, British, 1745-1755. Model, of a three-wheeled heavy wagon, or cart, 1745-1755 1745-1755
Device to simulate the reception from a radio telescope consisting of a power pack generating random noise (size 21 1/2"x11"x16") and a box (23"x18"x18") containing a cathode-ray tube and a loud speaker Device to simulate the reception from a radio telescope 1963