According to the catalogs, the Flamingo Hilton produced two distinct types of $1 "Las Vegas, NV" chips, the reguler grid inlay and the smooth inlay.

However only one type of inlay in the "Las Vegas" chips (without the NV).

Interestingly, the chipboard, which goes about the same line, does not have a picture scan of the SMOOTH "Las Vegas, NV" chip.

I just realized that I have a variation of grid & smooth inlay, but in the "Las Vegas", without the NV, chips!! See below.

So, is this a new find, or was the variation always in the Las Vegas chips only and not in the Las Vegas, NV, chips?? In which case the catalogs/guide were incorrect??

A question to all chipologysts!