1908 advert for Antikamnia Tablets credited to artist Alfred E. Neuman in an exhibition at the Château de Ramezay, Montréal, Québec, Canada - Postcard
Electric discharges to the surface and edge of a coin obtained with a Ruhmkorff coil or Wimshurst machine by Etienne Leopold Trouvelot, ca. 1888 - Postcard