good example is Star Wars; its original release number is "77/21", meaning it was released in the year 1977 and was the 21st movie assigned a stock number for that year. Movie advertising typically had the number in two places: stamped on the back by NSS, and printed in the lower-right corner. The NSS stock number is often mistaken for a "Limited Edition" number. With the demise of National Screen Service in late 2000, movies no longer receive NSS numbers. References External links Article on NSS Lawlor v. National Screen Service, 349 U.S. 322 (1955) Suit regarding monopoly status Film advertising material Defunct mass media companies of the United States Mass media companies established in 1920 Mass media companies disestablished in 2000 1920 establishments in New Jersey 2000 disestablishments in New Jersey