Jim,
The 3 insert chip I have labeled as CAR035.50 and give it an "I" value. I have it along with the other $25 chip red sky. I would also value that one as an "I" I think I will take the time to label all the Carnival chips that do not appear in our book. If anyone wishes to know the CAR# assigned to each let me know. It may require me throwing out the existing numbers to make it work.