There is no Missouri attribution. The attributions are between Las Vegas, NV and E. Cape Girardeau, IL. The confusion is that Cape Girardeau is across the Mississippi R. in MO, just as E. St. Louis is in IL, across the river from St. Louis, MO.

We list it as Las Vegas only because there is an ashtray from the T-bird in LV with the exact same drawing of the bird and its base as on this chip. We can't say for sure where it was located.