I finally found the image of grandad in his race boat with a V12 Hispano-Suiza engine. Nobody could beat him. He finally started letting the guy behind him take the trophy. Trophies I have of his date from 1927 to the early 1930’s. I suspect the engine is a 1927 airplane engine which had 500 hp normally aspirated. Also found images of him in his very small shop. Basically I am him in every aspect.

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