Subjects
- Historical films1
- Industrial engineering1
- Journalists -- Interviews1
- Journalists -- United States1
- Mechanical engineering -- Study and teaching1
- Metallurgy -- Study and teaching1
- Mining engineering -- History1
- Mining schools and education1
- Nobel Prize winners1
- Nobel Prizes1
- Occupation1
- Patents1
- Periodicals1
- Photographs1
- Physics1
- Physics -- Study and teaching1
- Picture postcards1
- Printed Ephemera1
- Progress Reports1
- Radio -- History1