37. Richard Robert's back-geared lathe Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
38. Muliple drilling machine drawing comparing old and new methods. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
39. Typical single spindle Gardner grinder, no. 7 1/2 Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Beloit, Wisconsin Date: undated Format: Image Agent: unknown
40. Single spindle machine with motor drive Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
41. Man checking a machine tool spindle for concentricity using a test indicator. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
42. Man using a scraping tool to true the bore of a machine tool. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
43. Core for engine, possibly for airplane Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
44. Two men installing parts into high-speed gear shapers at Fellows Gear Shaper Company "Battery installation" refers to the assembly, like a battery of guns in artillery. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Springfield, Vermont Date: undated Format: Image Agent: unknown
45. Gear-shape cutter generating teeth in blank metal circle at Fellows Gear Shaper Company Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Springfield, Vermont Date: undated Format: Image Agent: unknown
46. High-speed gear shaper made by Fellows Gear Shaper Company Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: 1922 Format: Image Agent: unknown
47. Milling machine gear shaper cutter from the Cincinnati Milling Machine Company Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Cincinnati, Ohio Date: undated Format: Image Agent: unknown
48. Gear shaper made by Milwaukee Tool Company Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Milwaukee, Wisconsin Date: undated Format: Image Agent: unknown
