Favorite this☆ Testing room, Gray Motor Corporation factory Description: View of testing room of the Gray Motor Corporation factory, showing car engines and dynamometer. Typed on back: "Testing room showing motors on blocks being tested - dynamometer, etc." Details Resource ID: na034525 Subject: Dynamometer Automobiles--Motors--Testing Automobile factories--Michigan--Detroit Gray Motor Corporation Photographic prints Format: 1 photographic print mounted on fabric ; 4.75 x 6.75 in. Member of: National Automotive History Collection Filing Location: Factories--Gray Motor Car Co. Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.
