This engine compartment light was Made in Germany by Hella between 1953-1955 for vintage VW Beetle. A VW Oval and VW Split edition was available.
You can find some more information on thesamba.com forum on topic Rare Engine Compartment Light. A similar engine compartment light was made by SWF.
Here pictures of the rare Hella engine compartment light for vintage Volkswagen, scanned from 1955 Hella parts catalog.
