most links on the web say that the last year of the 850 was 1970, as I mentioned in my last post here, I was not sure but I did buy my 124 new in 1974 and I didn't remember the 850 being available then. Today, I searched and it looks like the last year was 1970. If you have a 73 its probably like the FIAT Dino, almost all Dino's in the U.S. are registered as 1967's no matter what year they were made (1967-1972), mine for example is a late 1968 but it was easier to register a car as a 67.
Although why would you want to go newer as with the 850 I have no idea and I can't imagine why. So I think its probably mis-registered for some reason (I have been wrong before) What I said earlier stands, good car with lots of support.
Sherlock you forgot the Dino in your history lesson /ubbthreads/images/graemlins/smile.gif