1. Organization chart of the Associated Gas and Electric Empire showing holding companies and capital structure. Collection: Early 20th Century Engineering Lantern Slides Set: Organization Date: undated Format: Image Agent: unknown
2. Organization chart of Gleason Works in Rochester, NY Collection: Early 20th Century Engineering Lantern Slides Set: Organization Date: undated Format: Image Agent: unknown
3. Organization chart likely of Keystone Manufacturing Company Collection: Early 20th Century Engineering Lantern Slides Set: Organization Date: undated Format: Image Agent: unknown
4. Organization chart of Keystone Manufacturing Company. Handwritten. Collection: Early 20th Century Engineering Lantern Slides Set: Organization Date: 1922-04-22 Format: Image Agent: Steczynski, M. E.
