<p style='text-align: justify;'>Black and white photograph of Oliphant's accelerator and apparatus (counters, etc) against a wall. Oliphant designed and built this simplified version of the Cockcroft-Walton accelerator which operated up to voltages of 200 kV and produced fluxes of protons one hundred times greater than the earlier machine. Walter Andrews believed that this is the lead wall shielding Oliphant's proton accelerator.</p>