217. Manual dexterity dotting test for female worker. One puts a dot in the middle of each circle. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
218. Tool recognition test for employee. Tools include hammer, corner square, wrench, saw, and paint brush. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
219. Geometric design test for employee regarding shape recognition. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
220. Geometric design test for employee for shape recognition. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
221. Maze test for employee using pencil. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
222. Test for inspecting pencils and sorting them into box with dividers. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
223. Right-right turning test of picking up screws and screwing them into a board. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
224. Pinboard test for employees before they work in a pencil factory. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
225. Spiral inspection designed to test inspection ability Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
226. Man standing behind milling machine which drilled holes into a valve flange. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
227. Picture of two connecting engine rods for comparison: one older and the other larger and newer. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
228. Heald No. 81 Internal Centerless Grinding Machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
