Shifter Knob Id HELP

Anyone ever see a knob like this one? It's cast iron and is pretty heavy for it's size.

 

Doorknob maybe?

 

I have a 2 4bal offie intake if int. let me know and i will senk you the nos of it rckstub53

 

What?

 

OP wants nailhead parts, im going to say he is offering a intake to op and is willing to send him a part number or pics, took me a few also... but I may be wrong also...

 

Back to the knob, it may be off some piece of equipment and that could either be wheeled, stationary or tracked.

 

Looks like the end of a double hung window weight that I removed a while ago. They are REALLY heavy.

 

Few other have said the same thing.