19249. Man using a broaching machine on milled parts, which are on display. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
19250. Broaching machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
19251. Manual dexerity test for female worker. A female supervisor is timing her with stopwatch. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
19252. Drawing of 5 floors in a plant in relation to Main Street. Collection: Early 20th Century Engineering Lantern Slides Set: Plant Layout Date: undated Format: Image Agent: unknown
19253. Production of shafts through 4 floors of factory buiding. Collection: Early 20th Century Engineering Lantern Slides Set: Plant Layout Date: undated Format: Image Agent: unknown
19254. Manual dexterity test for female worker. Arrows point to the direction of movement. The washers are removed and reattached to the pegs. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
19255. Operator chart of assembling a cover using an improved method. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
19256. 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
19257. Drawings of the faces of Michelangelo and Alexander von Humboldt and a 3rd person. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
19258. Core for engine, possibly for airplane Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
19259. Failure curve showing the relationship between key variables. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
19260. Drawings of two men, labelled angle-line and dot-line, with a graph mapping to personality traits. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
