the same one shown in Ed Hertels guide,he shows a blue small-key mold (which is what your yellow chip is) according to his guide yellow is a new color,but value always depends on supply and demand,very few Illegal collectors anymore,but I love them,so if 20 people want them and there are 100 chips,it all depends on how bad they want them,I personally believe you might get $10-15 dollars apiece for them,just my opinion,very nice chips by the way,Dave