1. Gear shaper made by Milwaukee Tool Company Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Milwaukee, Wisconsin Date: undated Format: Image Agent: unknown
2. World's first automated construction assembly line of automobile frames by A.O. Smith Corporation Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Milwaukee, Wisconsin Date: 1921 Format: Image Agent: unknown
3. Outside storage for automobile frames, A.O. Smith 1921 Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Milwaukee, Wisconsin Date: 1921 Format: Image Agent: unknown
