BDB Modellen is a dutch brand. BDB stands for Bouwe de Boer, the guy who manufactured the models.
The models were manufactured around 1956 and as far as I know they produced a Series II Saloon and a Series 1000 Convertible. The convertible has the looks of a roadster, but it's clearly a Morris Minor.
The scale of this white metal kit is 1:43 and has only a small number of parts.
They are very hard to find.