Silver Spur business check, 8.25 x 3, filled out and signed by Ruby, "Jack L. Ruby," payable to Red Calhoun for $150, January 12, 1951. In fine condition. Encapsulated in a PSA/DNA authentication holder. In 1947 Ruby moved to Dallas to help run the Singapore Supper Club (later called the Silver Spur Club), which was owned by one of his sisters. That same year he also legally changed his name from Jacob Rubenstein to Jack L. Ruby.