Got my curiosity, so did a search.
"This beautiful three-seat convertible was hand-crafted by Rometsch Karosserie in Berlin, and is named after its designer, Johannes Beeskow. These cars were produced between 1950 and 1957, and were considered the 'Volkswagen for high society.' The very first one was sold to the King of Sweden, and others were driven by celebrities such as Victor de Kowa, Gregory Peck, and Audrey Hepburn. The aluminum-bodied sports car was never officially blessed by Wolfsburg, and, in fact, VW refused to supply the long-established coachbuilders with the rolling chassis and other parts needed, so they were forced to buy complete VWs through their 50 employees."
There's even a registry:
the-cars