1. Eight pictures of one man in suit and tie making various small gestures. Includes head whereas image #391 does not. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
2. Four pictures of one man's face with expressions above nose and mouth. Middle is blackened. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
3. Photograph of the two sons of Carl Bohnen Collection: Early 20th Century Engineering Lantern Slides Set: H. I. M. (Human Interaction Management) Date: undated Format: Image Agent: unknown
4. Mill-worker operating circular saw to cut super-chargers for airplane engines at Packard Motor Company. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
5. Close up of electronic milling tool cutting a bracket for an airplane propeller in Chicago Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Chicago, Illinois Date: undated Format: Image Agent: unknown
6. Multiple spindle verticle lathe Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
7. Multiple spindle vertical lathe Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
8. Female worker demonstrating old and new ways of inspecting bearing assemblies. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
9. Old and new methods of wrapping jackets with paper. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
10. Hele-shaw variable stroke pump engine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
11. Electro-hydraulic motor in reduction gear casing Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
12. Electro-hydraulic pump engine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
