That is one beautiful chip! I've only been able to find one other Taba Hilton chip and it's not nearly as detailed. One thing I have noticed about Egyptian casinos is they seem to put out new versions of their chips more often than US casinos. Cairo Sheraton for example has AT LEAST 6 versions that I know of. Omar Khayyam likewise has at least 4, so it makes sense that there would be a lot of prototypes out there. But yours is the first i've ever seen for an egyptian chip.

It truly is beautiful Nice find!