if you do a query of 2011 Michigan Independence chips or for that matter a query of 2011 Independence Day chips, you will only see the 3 chip set because chip CG038697 has no event stamp..the other 3 do

another example if you query Independence Day 1995, you dont see the 1995 Harrahs, Tahoe chip, because again no event stamp..., same for 2 other chips from that year
I've notice lots of mistakes....Thanks Paul, I now need 2 chips from that 4 chip set. Do you know of anyone that has a list of all 4th of July ever made??