I have a genuine Fender 2-button foot switch, universal for Fender amps such as a Deluxe Reverb, Twin Reverb, Pro Reverb, etcetera.
Lightly used from the amp’s previous owner(s).
I just don’t use it, it sits in the back of my amp as I leave the verb on all the time and have a tremolo pedal on my board.
There’s some electrical tape on the end of the cable near the tip, I suspect protecting the cable from the heat of the tubes.