Replying to Navitar 150-230mm f3.5 lens

Hey NS so I am on facebook page that has a person that lives near me who is selling a Navitar 150-230mm f3.5 lens. I Don't know anything about this lens but did some quick research and it didn't seem like the lens would work with any of my cameras. I have a T2i ,60D and eos 3 but I wanted to make sure. Hes letting the lens go for cheap cause he knows nothing about it. It was given to him. So if you think it's a good buy that would be greatly appreciated. Also If you could I would like to know what you think it's worth too.
Here are some pics of it.
The first 6 are pics of the lens he is selling.
The last is an example of how the lens he has is setup but its an entirely different lens.