A skilled worker grinds permanent magnet rotors during WW2 war efforts, 1942.

- Image ID: J7AD5K
Stocktrek Images, Inc. / Alamy Stock Photo
Image ID: J7AD5K
February 1942 - A skilled worker grinds permanent magnet rotors on a converted Norton cutter-grinder machine at a plant in Stamford, Connecticut. The metal is alnico and the octagonal shape consists of surfaces which are arcs drawn from the center of the piece.
Location: Stamford, Connecticut