What do you think the value would be on a 1970 Sanyo apartment fridge?

I was asking because my dad wants to just take it to a recycle plant, but I thought it might be of some value to somebody. it's in kind of crappy condition(on/off switch is busted up a bit, though it still can be turned on you just have to push it in and turn; is pretty rusty in the back coils), but I thought it could still be repaired by an expert. Only reason I ask is because I see a lot of people buy busted up old electronics and fix it themselves, I just wondered if I listed it on ebay would it be worth it.
-honestly just to get 20$ for it would be awesome, but I understand if nobody would want it.