97. Shield (gun housing, barbette) for guns used on battleship. Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
98. Typical rotor clearance indicator Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
99. Worker using mallet to pack ore around studded tubing before melting down Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
100. Ore packed around studded tubing before melting down Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
101. Flowchart of process of interviewing candidates for several positions. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
102. Payroll form with space to fill out employee's name and details. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
103. Topography of skull showing which parts of the brain controlled abstract traits. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
104. Two photographs of two tests given to employees relating to speed and dexterity. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
105. Man vs machine chart, comparing effectiness of 2nd new method, includes operations Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
106. Man vs. machine chart, comparing effectiveness of new method, includes operations Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
107. Chart comparing criteria and test scores. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
108. Photograph of Henry Woodruff Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
