Up for sale here is this set of 2 vintage 1968 CTS 20k ohm linear taper potentiometers.  These are vintage "dishback" pots and have matching 1968 date codes.  They measure around 19.58k and 20.39k ohms.  These have short 1/4" D shafts, so any standard 1/4" D hole knob or 1/4" knob that locks on with a set screw should fit.  These are guaranteed to work great for you, though they may need some Deoxit. The terminals have a little vintage solder and wire bits on them. These are pretty rare potentiometers and would be great on your guitar or amp. Please see my pictures for details.

US shipping and handling is $5, and international is $18, 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 pots and other vintage electronics listed--feel free to take a look!