The King of Rock 'n' Roll: The Complete 50's Masters is a box set five-disc compilation of the complete known studio master recordings by Elvis Presley during the decade of the 1950s, issued in 1992 by RCA Records, 66050-2. It peaked at #159 on the album chart. In its initial format as a long box issue, it included a set of collectible stamps duplicating the record jackets from every LP, every single that had a picture sleeve, and most of the EP releases, on RCA Victor. It also includes a booklet with an extensive sessionography, discography, and lengthy essay by Peter Guralnick. It was certified a gold record on August 7, 1992, by the RIAA; further certifications were for platinum on November 20, 1992, and for double platinum on July 30, 2002.