21. Hand operated filling pump Collection: Early 20th Century Engineering Lantern Slides Set: Cramer's Date: undated Format: Image Agent: unknown
22. Electro-hydraulic steering gear engine Collection: Early 20th Century Engineering Lantern Slides Set: Eastman Date: undated Format: Image Agent: unknown
23. Electro-hydraulic steering gear engine Collection: Early 20th Century Engineering Lantern Slides Set: Eastman Date: undated Format: Image Agent: unknown
24. Picture showing the straight-line method of controlling forms reduced the number from 21 to 10 forms. It also reduced the amout of paper from 67,000 to 3,000 annually. Collection: Early 20th Century Engineering Lantern Slides Set: Plant Layout Date: undated Format: Image Agent: unknown
25. Acme multiple spindle automatic screw machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
26. Automatic lathe by Jones and Lamson, front view Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Springfield, Vermont Date: undated Format: Image Agent: unknown
27. Man standing next to automatic lathe by Jones and Lamson, back view Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Springfield, Vermont Date: undated Format: Image Agent: unknown
28. Automatic screw machine turning stock from 1/2 inch to 2 inches. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Providence, Rhode Island Date: undated Format: Image Agent: unknown
29. Motorized turret lathe by Potter and Johnson, their name imprinted on the machine. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Pawtucket, Rhode Island Date: undated Format: Image Agent: unknown
30. Universal multiple drill machine, drilling both horizontal and vertical Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
