Fender potentiometer dating
This bushing slides over the pot shaft before the knob is installed, and stabilizes the shaft as well as keeping the knob from rubbing the front faceplate. Used as the 'Fat' switch push switch in the Blues Junior. White stitched brown leather, just like the original.
These went on to be the American Deluxe Strat Series. (Why you are at it, check out my wild and crazy Custom Strat Plus guitars!
) Each of these models are taken up on different pages on this website (just click on the names).
The Plus Series was a very good attempt to reclaim Fender USA's floundering reputation, as quality had drastically gone down hill under CBS's ownership. The Stratocaster was Leo Fender's second guitar design after the Telecaster around 1953, with actual production beginning in early 1954.
I was told to check the potentiometer date codes, which all have “1377142” impressed into them.
I read on a Gibson forum that, on seven-digit pot codes, the fourth and fifth numbers represent the date.