1. How 34,700,000 jobs are divided Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: United States (nation) Date: undated Format: Image Publisher: Business Week
2. Room with dozens of men taking a test or reading newspapers and journals. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: unknown Date: undated Format: Image Publisher: unknown
3. Room with dozens of men taking a test or reading newspapers and journals. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: unknown Date: undated Format: Image Publisher: unknown
4. American labor unions, who is organized and who is not Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: United States (nation) Date: undated Format: Image Publisher: unknown
5. 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 Publisher: unknown
6. Row of houses for employees of Minnesota Steel Company, Duluth, Minnesota Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: Duluth, Minnesota Date: undated Format: Image Publisher: unknown
7. Early automatic teller machine for coin deposits. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Publisher: unknown
8. The Traveling Cafeteria Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Publisher: unknown
9. Restroom (bathroom) showing urinals and circular fountains for washing hands. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Publisher: unknown
10. Teacher lecturing to over a dozen students in a classroom Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Publisher: unknown
11. Traveling book cart (library) visiting factories workers at National Cash Register (NCR) during noon hour for them to read. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: Dayton, Ohio Date: undated Format: Image Publisher: unknown
12. Women performing synchronized calisthenics at National Cash Register (NCR) during a work break. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Publisher: unknown
13. Training center for public health nurses, baby examining room. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: St. Louis, Missouri Date: undated Format: Image Publisher: unknown
