1. Gear Shaper Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
2. Single spindle machine with motor drive Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
3. 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
4. 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
5. 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
6. 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
