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Miniature Engineering Museum

Elmer Wall's Experimental Prototype Rotary Valve Engine, Chicago IL, circa 1925

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Uploaded on November 21, 2024
Taken on November 20, 2024

Elmer Wall's Experimental Prototype Rotary Valve Engine, Chicago IL, circa 1925

872 views
0 faves
0 comments
Uploaded on November 21, 2024
Taken on November 20, 2024
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