in Czech Republic there are about 5 or 6 casinos scattered across the country.

I think your Casino 777 is that CR.

I will look again and see if I can zero in a location in this country.

In Russia there are 3 known locations, but I am not sure if your chip is from here.

I will look again for your particular chip and see if we can agree to a location, will definitely get back to U.