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- History is fun!
- The Holy Bible history book.
- BIBLE HISTORY TRANSLATED OUT OF THE ORIGINAL TONGUES.
- Holy Bible. 4000 QUESTIONS AND ANSWERS, CIRCA 1901.
- How does a governor work?
- How does a steam turbine governor work?
- Grandpa's study book notes.
- Grandpa's notes.
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- POWER PLANT ENGINEERING HISTORY DATA.
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