289. Drawings of nine heads connecting different shapes to various personalities. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
290. Portrait of an older man in regards to man's development. Artist is Carl Bohnen, 1871-1951. Collection: Early 20th Century Engineering Lantern Slides Set: H. I. M. (Human Interaction Management) Date: undated Format: Image Agent: unknown
291. Drawings of the faces of two men - the salesman type and the executive type, with comments on facial features. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
292. Drawings of the faces of two men - financial type and professional type, with comments on facial features. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
293. Two photographs showing men measuring aspects of operating automobiles Collection: Early 20th Century Engineering Lantern Slides Set: Growth Date: undated Format: Image Agent: unknown
294. Automobile being driven through deep water as a test. Collection: Early 20th Century Engineering Lantern Slides Set: Growth Date: undated Format: Image Agent: unknown
295. Time study showing readings for various processes with a stud. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
296. Cartoon showing one worker timing another doing a work task. Collection: Early 20th Century Engineering Lantern Slides Set: General Date: undated Format: Image Agent: unknown
297. New process method of dating and filling bags with 100 pounds of salt. Collection: Early 20th Century Engineering Lantern Slides Set: General Date: undated Format: Image Agent: unknown
298. Cartoon showing 5 workers chained to their workstations to do a repetitive task. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
299. Man operating a lathe for machining metal. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
300. Old method of dating and filling 100 pound paper bags. Collection: Early 20th Century Engineering Lantern Slides Set: Time and Motion study Date: undated Format: Image Agent: unknown
