Francis Ruyter, Alfred T. Palmer: Conversion. Automobile industry. Line of “honing” machines formerly used on automobile motors, have been moved back in the plant to make way for war work. Soon these machines will be stored outdoors until the tools necessary to adapt them to war activities can be completed. The Plymouth Company, Chrysler Corporation, Detroit, Michigan, 2018 | ← Francis Ruyter, Alfred T. Palmer: Conversion. Automobile industry. Line of “honing” machines formerly used on automobile motors, have been moved back in the plant to make way for war work. Soon these machines will be stored outdoors until the tools necessary to adapt them to war activities can be completed. The Plymouth Company, Chrysler Corporation, Detroit, Michigan, 2018