Highly unlikely your shifter is original. Have owned / seen multiple original 64-65 Hurst shifters (A, B, & C-body) & all had stops. The factory service manuals for those years illustrate the stops & also provide the adjustment procedure. Mopar eliminated the stops when they reintroduced Hurst shifters in 1968 but they can be easily added if so desired. The original replacements that Hurst did/ still sell all have the stops. One thing I recall the early factory shifters had was a stamping "patent pending".
