It was fairly common, even today for any given Las Vegas establishment to offer a couple slots whether it be in a 1950's motel lobby or a modern day convenience store. Two slots were offered to the guests of the Glenn Vegas in 1958 and were probably two of the tightest machines on the strip!! This matchcover although not that rare, has a superbly drawn logo featuring a cowgirl lassoing a bathing beauty, and from the looks of the postcards a superb neon as well.
Enjoy,
Eric