Technical manuscript in French concerning engines, contained in an 8 x 10 notebook, 54 pages, circa early-to-mid 20th century. The manuscript is rife with hand-drawn schematics and diagrams, and headings throughout the notebook include (translated), “Elementary Concepts of Physics,” “Elementary Mechanical Concepts,” “Elementary Concepts of Electricity,” and the longest section, “Technology Study on the Engine.” This includes lengthy, detailed notes with specific mentions of technologies and manufacturers including “Renault,” “Diesel,” and “Hispano,” as well as copious notes on general topics and systems. In overall very good to fine condition, with some tears to binding and a couple loose pages.
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