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Creation date / 2017 / August / 6
- The Holy Bible history book.
- What is a AC MOTOR?
- Coming soon several more vintage Intertational Textbook Company TECH history books.
- ELEMENTS OF BLUEPRINT READING HISTORY.
- Woodward Governor Company Shop Order 3155, SN # 5719, circa 1926.
- Another example of a blueprint of a mechanical water wheel governor Size D series 3, circa 1926.
- STEAM ENGINES AND VALVE SETTING HISTORY.
- READING SHOP BLUEPRINT HISTORY.
- THE JAMES LEFFEL COMPANY, CIRCA 1944.
- A vintage Water Wheel Manufacturing History Project.
- The Woodward Company and the James Leffel & Company are still in business in the year 2020. History in the making!
- JAMES LEFFEL LETTERHEAD, CIRCA 1944.
- JAMES LEFFEL LETTERHEAD, CIRCA 1944.
- BLUEPRINT ON TRACING PAPER FROM 1918.
- Woodward Governor Company's shop order #1845, circa 1909.