[Lordstan]

Nice ball.
It is what I expected it would be. Someone started a HOF ball and added Maris hoping he might make it in. He hasn't, so it breaks the theme.
Believe me, I wish multi-signed items held more value. I have lots of them in my collection and every time I go to sell one I am disappointed. I have sold several balls very similar to yours, but without Maris. I never got more than $500 retail for any of them and most were between $300-400.
Because Maris is on it, 2 dealers offered you $600 for it. They will offer less because they need to make a profit. You paid $710 3yrs ago. If you add a little for appreciation, perhaps you get $1K retail now. Any dealer that buys it would probably list it for $1200-1300 and sell it for $900.