Item is an 11 page patent description of a "photographing machine" (the Phototeria) that would create novelty, souvenir photographs on sensitized disks.
Item is a document outlining the patent claims being made by David A. McCowan for the photographing machine (Phototeria) as part of the patent process undertaken in 1929.
Item includes a 6 page document with technical drawings that included the 1929 patent application that David A. McCowan made for the "Photographing Machine" (Phototeria).