Although I have the history of my car, i.e: year, dealership, etc documented elsewhere, I looked at my data card and sure enough: There is another weird issue. The "Auftrags-Nr/ Order-No" on the data card reads: 217-4464. It does not start with a leading 0 for 1970 and has a dash between dealer/contry code and serial sequence no. Anybody seen anything like this?
I know it was sold through the "Niederlassung Frankfurt". First owner was a fur dealer who bought it as a Christmas present for his wife.