There's no difference on the newer knobs- if it was the limited run TK knob it's made by Rowen all TK buyers got a limited amount for a one run time.
If one of the original ones- those were the ones made long ago buy TK before Rowen took over the ownership.
That's all- if it's new and from bulletproof- it's from Rowen, supposedly made from the original exact specs as the original ones.
Hope that helps!
Beyond that/ this is by far the best shift knob I've personally ever owned!
Best of luck to the seller on a beautiful awesome piece.!
I might buy it as a spare myself.!
