Does this car have a data plate with a serial number? I believe this was located on the passenger side wooden frame rail.
If the car is assembled in Copenhagen (XB), Antwerpen (XD) or Stockholm (XS) you will not find the data plate mounted as in America. It will be fixed to the fire wall inside the engine room, when it is assembled before around 1935. The ID consist of four letters and three to four figures stamped into the plate: f.ex. XBAB 0110. X for export, B for Copenhagen, AB for 1928 and the production # from that year. Almost always this will be the only way of recognizing the chassis # on the car, and unfortunately also makes a lot of difficulties when the plate is missing and no (original) papers can be shown to the registration office.
So far CCON has discovered only two cars with the chassis # stamped into the (right rear part of) beam of the chassis, one from Copenhagen and one from Karlsruhe., Only US and Canada-factory made cars have shown the American ID-platings (chassis#, job#, color#, etc.) before 1936. We think the assembly factories outside America started to copy the US way of IDmarking from 36 for passenger cars, but I have to check with two other guys to be sure, and as to the trucks/buses.
This must have been quite an old modification. Do you know when it was made?
:vcca: