 Milton Prell's first project in Las Vegas was Club Bingo, opened on the Las Vegas Strip in 1947.Prell later opened the $5.5 million Sahara hotel-casino on the property in 1952.Eda Schivo, sister of Frank Schivo, would become Prell's private executive secretary, and Frank was Prell's key employee in the Club Bingo and the Sahara hotel.