Penetrate the Heart of his Secret | Caligari 1920

Sophisticated Science: Wire-rim Rounds with Saddle Bridge on Young Man Circa 1920

Scientific experiments at the California Institute of Technology in the late 1920s and early 1930s. This view shows a young man holding a scientific instrument while the other man looks on.

Young Scientist in Black Horn Rounds Circa 1920

Scientific experiments at the California Institute of Technology in the late 1920s and early 1930s. This view shows a man looking into an eyepiece connected to a small white cylinder.