Very nice chip and it appears to be in excellent condition. Since it is a difficult chip to get and due to the exceptional condition it appears to be in, I say it's at least worth $900 (Campiglia & Wells Price Guide gives a range of 300 - 900). You might be able to get more from the right person. Please keep one thing in mind, however, I am not a professional chip dealer and I speak from only four years of casino chip collecting experience. Lastly, I do have one of these, but it is not in the premium condition your appears t be in... then again, I prefer to collect "used" chips and not mint or uncirculated condition chips.
Thomas