Keywords: Scientist-Inventor by Harold Mallette Dean - Coit Tower, San Francisco, CA - DSC04800.jpg en Scientist-Inventor by Harold Mallette Dean - Coit Tower San Francisco California USA Described as a portrait of Albert Abraham Michelson with interferometer in front of the Lick Observatory This artwork is in the public domain because it was created by an employee of the United States Works Progress Administration 2015-05-23 16 03 35 own Daderot other versions PD-USGov-WPA cc-zero Scientist-Inventor by Harold Mallette Dean |