This chip was handed out at a presentation when the 1997 renovation at Harrah's Las Vegas was completed.

For reference see this Wikipedia article -- under "Design" section, last paragraph, plus a pic of the big mural out front. The mural includes the showgirl on your chip.
https://en.wikipedia.org/wiki/Harrah's_Las_Vegas#Design

I think Jim Follis has this chip and posted it here a while back, though I didn't check the archives.

So it's sort of a GO chip, but also more of a souvenir.