Good Morning Rich,
In my opinion the color where there is only one box I would say $75.00 to $100.00 depending upon condition. The color with two boxes $35.00 to $50.00 depending upon condition. Crest and Seal roulettes have a limited collector base. The chips also tend to dry out quickly and crack with age unless they are cared for properly. I believe you and Jerry Birl are the ONLY two who collect this type of chip. Just joking my friend.
Best, Mr."P"