Frank Sinatra (left) and Jack Entratter with Copa Girls at a rehearsal of "Ziegfeld Follies" in June 1954.
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The marquee at the Sands Hotel, circa 1963, which read: "Jack Entratter Presents Dean Martin, Maybe Frank, Maybe Sammy."
Frank Sinatra performing in the Copa Room at the Sands Hotel in the 1960s.
From left to right, Dean Martin, Sammy Davis Jr., and Frank Sinatra performing at the Copa Room in the Sands Hotel sometime in the 1960s.
Frank Sinatra performing at the Copa Room in the Sands Hotel in February 1963.
Dean Martin (left) and Frank Sinatra performing at the Copa Room in the Sands Hotel sometime in the 1960s.
Dean Martin and Frank Sinatra on opening night of their show at the Sands Hotel on January 22, 1964.
Sammy Davis Jr. dancing at a party on May 18, 1966.
Dean Martin (left) and Frank Sinatra performing at the Copa Room in the Sands Hotel in 1962.