Looking for something about like this:
Preferably one that is brass plated, but that's not really critical. I've also seen the same basic thing but instead of a knob it's more like a normal key, either one works for me. Post here or PM me if you have one you will sell.
Update: a switch has been located and deal has been struck!! Thanks
I am in need of just the key, or "plug" for one of these . Tmorsher@icloud.com.