If there is no verification that this is a factory nickel, meaning it originally shipped from the factory that way. You're dead in the water. There's no way to evaluate it, even with nice clear pics, unless we know for sure it is factory nickel. Now, if it has the original box with end label indicating nickel finish, you're in business, depending on the asking price. You can share it with us, no one is going to buy it out from under you.