A friend tried to sell this chip to me for $15! But I told him I wanted to confirm attribution and see if we could get a good bid on it; if so, I would charge him 25% for the building fund. This appears to be N1609 "S" ($300-349) - I don't have Campiglia & Wells 2nd edition here at home; the first has it as between $125 & $375. Nice chip--the center insert on the other side is a little loose on one side but easily repaired--there are no nicks or scratchs. The chip has a light green patina on the mold and the inserts look dark green to me, rather than gray--tho they look gray in the scan. However, I have washed (carefully) one side and it appears that it might in fact be cream with gray inserts. If interested contact me with an offer that must exceed $250.