can someone help me identify this binding?
 

I'm looking to try cross-country skiing. so, i started asking friends about where to get equipment (without buying it new), and i ended up finding someone who gave me a a pair of never-used, but 20 year old skis, with poles for nothing. Unfortunately, the matching boots did not fit me. not even close.

So, i'm looking to find some boots, but i have no idea what kind of bindings these are, or if i can even find boots that fit them. They don't look like any pictures i was able to find online.

Can somebody tell me what type of bindings these are, and if i have any hope of finding boots for them?