I think it's the C.A.M. Cabriolet by Carl Amesmeier, Munich (Germany) from 1957.
That's right, it is.
I did see your name on the website where I found this so I wondered what had happened to you!
It also mentioned that the car might be known as a 'Georgano' too; do you know anything about that?
The site also mentioned that it was powered by a 2-cylinder engine but didn't say which one; do you know the answer to that question too? That's why I thought it could possibly be Panhard-engined.