The Dells is listed in the Gaming Table(a book all collectors should have) as US Hwy 41, Evansville, between Evansville and Henderson, Ky. 1940's-1950's. The Sky could be Skyline Club, Phenix City, Al. 1940's-1954. That's just a guess, but it is listed in TGT also. Hope that helps some. Doug in Kingman, Az.