This dusty old Microsoft SIdewinder gamepad surfaced in a pile of stuff when I was looking for something else. A few days later, the topic of old game controllers came up, and I realized I had one in my hands.
It's not worth anything. It's a precursor to the XBOX controller, but was designed for simpler games. There's not enough controls to do anything fun like drive a car or fly an airplane, and all of the controls are just digital buttons: no analog sticks and definitely no analog directional pad.
I need a picture of the thing for an illustration on an article on old game controllers. I considered cleaning out the dust, but the dust may be worth more than the gamepad.