85. Various thread counts on metal studs and screws with time it takes to create them. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
86. Flat turret lathe. Faucet for water is visible on top. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
87. Early turret lathe for making screws and studs Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: 1857 Format: Image Agent: unknown
88. Drawing of an early turret machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: 1858 Format: Image Agent: unknown
89. Engine lathe Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Unknown Date: undated Format: Image Agent: unknown
90. Man using a broaching machine Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: 1948 Format: Image Agent: unknown
91. Machinist using a boring machine with water from faucet cooling the device. His supervisor, in a suit, looks over his shoulder. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
92. The image shows various machining processes, highlighting the movement of the tool and workpiece in each. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
93. Large group of workers standing in front of steam power plant equipment. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
94. Super-draft roving frames for automatic spinning Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
95. Athanasius Kircherís speaking trumpet for broadcasting Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: unknown Date: 1650 Format: Image Agent: unknown
96. Water pump with perpetual motion Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: unknown Date: 1661 or 1662 Format: Image Agent: unknown
