325. Minimum current living expenses Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
326. Officer in how many organizations Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
327. Net worth form Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
328. Length of Negotiations Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
329. Table comparing the percentage of men and women by age groups Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Date: undated Format: Image Agent: unknown
330. 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
331. Drawings showing how to double output of a worker by cutting down on handling and setup. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
332. 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
333. Time study showing time reading for various processes with a stud, with totals and averages at bottom. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
334. Female factory worker creating letters on a plate for eventual printing in a circular workspace, McGraw-Hill Book Company. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
335. 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
336. Operator chart of assembling a cover using old method. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
