RUDOLF CHRISTIAN KARL DIESEL - AUTOGRAPH LETTER SIGNED 04/14/1909 - HFSID 350446
The developer of the internal-combustion machine that uses oil as a fuel writes to a grieving acquaintance.
Rare ALS: "Diesel," 2pp, 3¾x5½, separate sheets. Haus Diesel, 1909 April 14. In German with English translation to Dr. Bloch. In full: "I did not completely understand your telephone message yesterday and that you were personally grieved; and only today I learned about the facts. I ask you to accept my expression of heartfelt sympathy. I would have expressed the same to you yesterday at the cemetery if I had been informed." Diesel patented his engine in 1892. Diesel engines are less smooth-running, heavier, and initially more expensive than gasoline engines but make more efficient use of cheaper fuel. They are widely used in ships, heavy vehicles, power installations and in passenger cars. Diesel signed material is rare in any form. Fine condition. Framed to an overall size of 35¼x20.
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