Need replacement knobs for White 77 Rotary
 

I recently acquired a White 77 Rotary machine, which I really have a soft spot for as I learned to sew on this make/model way back when...

It needs new knobs however, for the stitch length forward and reverse and upper tension adjustment.

Does anyone know a source for these knobs? They appear to be made of plastic, but time has not been kind and all are cracked and crumbling.

It looks really nice after a good cleaning, polishing and oiling - the power cord needs replacement but DH can handle that no problem.

Can't wait to try her out!

It looks like I found some knobs from a fellow in CO on a website called Bonanza (eBay alternative?)
He has already shipped them, so I am keeping my fingers crossed that they will be perfect!:)