This was the first pedal I ever bought. Secondhand, some time in the early 80s. I've no idea what it cost me, but it wouldn't have been much, because we didn't have much back then!
Used it a few times at home then put it away.
It's been in a box of assorted music kit since the mid-80s, but I got it out, cleaned the pot with a squirt of Servisol Super 10, fitted a new battery, and... It still works!
Pots are a little noisy, although it improved noticeably after just a few minutes of playing with it (Which is normal as the Servisol works its way around the potentiometer tracks).
Bear in mind this pedal is at least 50 years old, and hasn't been used for at least 40, so you may need to do some further tweaking for it to work like new again, but it's all there and it's all functional, including the switch that selects between the wah and the swell functions.
No idea what it's worth, so a low starting bid and no reserve seems to be the best way for it to find a new home. Auction will run to the end. I'm not ending it for offers out of fairness to other bidders. You can even have the new battery for free, ;-)