Hermann Graber?
Yes it is by Graber, locked for you to come up with the right year (there are 2 possibilities..
. And welcome to Autopuzzles AlexFrance !
Thanks a lot mekubb for the welcome message!
Regarding the year of manufacture, I have been searching for clues but haven't found anything really relevant so far. How long do I have until you unlock?
If I may ask for a nudge in the right direction, and since your answer implies that there are only two -easy?- possibilities, can the year of the car be deducted from something that can be seen from the outside? I was thinking about the number of exhaust tubes for example since there has been different engines fitted to that car along the years. Or should it be deducted from the look of the car. If yes to the latter question, then I think this body design is probably from the late thirties (as opposed to the early thirties).