133. Smoke indicator, sectional view through boiler uptake Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
134. Diagram of assembly of inertia type speed regulating controller Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
135. Interior view of a cruising tubine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
136. Exterior view of a cruising turbine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
137. Re-entry turbine, showing nozzle, wheel, and reversing chamber. Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: Terry Steam
138. Exterior view of a high pressure turbine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
139. Interior view of a high pressure turbine Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
140. Row of houses for employees of Carnegie Steel Company, East Pittsburgh, Pennsylvania Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: East Pittsburgh, Pennsylvania Date: undated Format: Image Agent: unknown
141. Merit rating form for ranking employees at Campbell Soup Company by plant supervisors. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Location: Camden, New Jersey Date: undated Format: Image Agent: unknown
142. The Traveling Cafeteria Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Agent: unknown
143. Merit rating form for ranking employees at Campbell Soup Company by office supervisors. Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Location: Camden, New Jersey Date: undated Format: Image Agent: unknown
144. Organizational chart of personnel department with its divisions and functions listed Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
