This is a trike like I had back in the '70s; mine was blue. That's a Renault R-10 engine, it obviously sat very low and was quite fast.
It was also what I was on when I met Gen. Pease. I post this here as I've seen other veterans post their Harley Davidson photos. This trike wasn't a Harley, but the person who designed it won awards when he showed his creations at the Cal-Expo Autorama. For true HD enthusiasts, it wasn't but it was mildly accepted.
I was about eye-level with Gen. Pease's front tire as I remember it.