13. Double broaching machine, J.N. Lapointe Co. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: New London, Connecticut Date: undated Format: Image Agent: unknown
14. Ore packed around studded tubing before melting down Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
15. Manual dexterity test for female worker. Arrows point to the direction where the pegs should go. It appears the round pieces of wood are flipped from a dark side to a light side. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
16. Manual dexterity test for female worker. Arrows point to the direction where the pegs should go. Collection: Early 20th Century Engineering Lantern Slides Set: Aptitude Tests Date: undated Format: Image Agent: unknown
17. Spinning wheel for wool Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: unknown Date: undated Format: Image Publisher: Harper's
18. Exterior view of a cruising turbine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Publisher: unknown
19. Interior view of a high pressure turbine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Publisher: unknown
20. Merit rating form for ranking employees at Campbell Soup Company by plant supervisors. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Location: Camden, New Jersey Date: undated Format: Image Publisher: unknown
21. Merit rating form for ranking employees at Campbell Soup Company by office supervisors. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Location: Camden, New Jersey Date: undated Format: Image Publisher: unknown
22. Plant layout of work to be cleaned, inspected, and reinspected. Collection: Early 20th Century Engineering Lantern Slides Set: Plant Layout Date: undated Format: Image Publisher: unknown
23. Face of two men next to personality traits. One signed H.B.F.; the other E.E.L. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Publisher: unknown
24. Two drawings upper lip and corner of mouth Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Publisher: unknown