Hi Kurt!
Did some research and found the Gold Key listed at 3053 Las Vegas Blvd So, Las Vegas, Nv (Ph# 735-1636).
All I could find were match books....and all the matchbooks show the same; it appeared to be a typical 3 story motel with a pool. No mention of any casino or lounge.
My Vegas history books make no mention of any gaming here either.
I wonder if this was the motel my folks and I stayed in in 1964. I was amazed that with a phone call, a pizza was delivered to our room....shazam!!
Tammy