Jim, I think you found a historic piece in the evolution of Harrah's Las Vegas, from its evolution from the Holiday / Holiday Inn riverboat-design days to the present. Here goes more than you probably want to know...

According to this Forbes article, the mural artist, Henry Conversano is famous for early work with Bill Harrah himself on Harrah's Lake Tahoe.
https://www.forbes.com/sites/muhammadcohen/2018/10/01/casino-designer-conversanos-legacy-stretches-tahoe-to-south-africa-via-trump-tower/

He's also worked with Trump on his AC casinos and with Steve Wynn on the tropical Kokomo's restaurant ... among lots of other casino projects. (Sadly, he's passed now, with Google searches showing his Obituary, etc.)

Next stop: Wikipedia entry for Harrah's Las Vegas:
https://en.wikipedia.org/wiki/Harrah's_Las_Vegas#Design

Under the "Design" section, last paragraph, it says:

The 1997 renovation, by designer Henry Conversano,[54] removed the riverboat façade and added a Carnival/Mardi Gras theme to the resort.[96][59] A 30-by-90-foot mural was added to the new façade,[97] along with several jester statues, covered in gold leaf and weighing 22,000 lb (10,000 kg) each.[98][77]

And Wikipedia also includes a pic of the mural. Sure enough, the "showgirl" in your lucite chip is the same showgirl in the mural, just beneath the Harrah's "ball" on top of the building. See pic:

The (New Orleans-inspired) Mardi Gras "Carnaval" design theme even carries over to the Carnaval Court between Harrah's LV and LINQ.

So, here's what I propose you do --
Go to mid-strip, across the street from the mural where you can get a good picture. Take a selfie with you, holding the lucite chip & COA, with the showgirl mural in the background. You can even title it "Jim and the Two Showgirls". DO IT!

Over & out. Bob