1. 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
2. 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
