Not mine
https://www.facebook.com/marketplace/item/639807854950748/?mibextid=6ojiHh (https://www.facebook.com/marketplace/item/639807854950748/?mibextid=6ojiHh)
That one is a 4-stroke.
But from this: 1961-1970 HD Aermacchi Sprint. (This 1960 model is a "Wisconsin". The silver one on FB is a lightweight).
They built this: (The ancestor of the HD GP 2-strokes from the 1970's). Aermacchi Ala d'Oro. Sold for the street in Europe with lights and signals. Popular 250, 350, and 500cc racers.
IR8D8R