3241. 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
3242. 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
3243. Examples of screws, studs, and knobs made by the automatic screw machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
3244. Gear hob from the Barber Coleman Company Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Rockford, Illinois Date: undated Format: Image Agent: unknown
3245. Gridley multiple spindle automatic machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
3246. First milling machine, Eli Whitney, 1818 Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: 1818 Format: Image Agent: unknown
3247. Revolving vertical turrets machining parts in assembly line Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
3248. Multiple spindle vertical lathe Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
3249. Men in automobile measuring acceleration with a pousometer. Collection: Early 20th Century Engineering Lantern Slides Set: Growth Date: undated Format: Image Agent: unknown
3250. Hele-Shaw variable stroke pump engine Collection: Early 20th Century Engineering Lantern Slides Set: Cramer's Date: undated Format: Image Agent: unknown
3251. Man reading to workers assembling cigars in a factory in Cuba. Collection: Early 20th Century Engineering Lantern Slides Set: Growth Location: Cuba Date: undated Format: Image Agent: unknown
3252. Diagram of hydraulic windlass with hydraulic pump equipped with stroke regulator. Collection: Early 20th Century Engineering Lantern Slides Set: Cramer's Date: undated Format: Image Agent: unknown
