Didn't notice the faded lettering till you pointed it out. A quick look in Fuller's Index... tells us we're probably seeing "Cinnabar" from the Cinnabar Club, a slots only joint '59-'65. Also TCR lists chips from the Vault Casino at that address '74-'76. To give myself reference to location, I'm suppossing that's Binion's Parking structure in the background (?). Would be cool if you are able to get some scans posted, Mark!