"The second floor of Binion’s, formerly The Mint, has been gutted to make way for the new venue."

Hardly looks like there could be much of a second floor, now I see from other photos, the arch was a false front, in front of a conventional block building. It is a bit unusual, maybe some old timer will remember? Oh I found this...

Patsy Cline stood near this? https://www.facebook.com/binionslv/videos/vb.325063038062/10152142756508063/?type=2&theater

Yup a photo

OK that's all folks, good luck.