It's hard to tell with all that built up crud on them!
There is some wear on them, but that would be expected...but TBH, there is a ton of crud on the heads, and the guides almost look like they have some corrosion at their bases...not to mention the pinch roller, etc.
You can't just make an informed decision on a picture like that...and even if the heads were clean, with anything that old, you really have to test it out.
That said...depending on the price...it might be worth the risk, but just keep in mind, if this is some kind of present, you might be better off getting him something else...OR...giving him the opportunity to decide if he wants that deck, based on its condition.
If the picture was provided by the seller...ask him to clean it up a bit before you decide...and then send you a new picture.
If it was me...I wouldn't waste my time with it...BUT...my gear mindset is somewhere else these days. There are a lot of guys who like buying older gear and trying to fix it up and all that, and/or their budgets don't give the too many other options.
Anyway...it might clean up nice...and it might even work OK. Used gear like that always has some risk, especially when the seller apparently didn't take care of it well, or can guarantee that it works or your money back.
Is this off of eBay...? Are there any more pictures and supporting description you can provide...or just point to the listing, so I/we can check it out further for you.