Up for sale here is this set of 2 new black Bakelite pointer knobs with silver-colored centers. These look vintage but are newer. They measure 1 3/4" (1.75") in diameter and are for a 6mm potentiometer shaft, each locking on with two flat-head set screws (included). They will fit ribbed 1/4" and probably 1/4" D shafts as well, and you can drill them out to fit 1/4" round shafts.  These would look amazing on your guitar amp. Please see my pictures for details.

US shipping and handling is $6, and international is $20, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.

I have more knobs and other vintage electronics listed--feel free to take a look!