b'NSS printed, warehoused and shipped material for the studios. To the theaters, they provided trailers and rented posters. In the mid 1970s, the NSS managers got together and bought the UK company from the parent company making it a private UK owned company. Operations continued as usual under the new ownership. Unlike the American NSS though, they did NOT mark their posters. BUT they did put the NSS ownership tag like their US counterpart. The NSS tag would normally go across the bottom of the poster in block or single line form and state:"This copyright advertising material is licensed and not sold and is the property of National Screen Service Ltd. and upon completion of the exhibition for which it has been licensed it should be returned to National Screen Service Ltd."This NSS tag was used UNTIL the early 1990s, when the NSS STOPPED renting posters and the tag was dropped. In 1998, Carlton Advertising bought out NSS-UK and made it a division of Carlton. In 2003, Carlton merged with Granada which then became a part of ITV.THE BOOKIn this book, we cover 50 years of NSS poster numbers (1940 through 1989). There are several important areas that need explaining before you go to the logs. Sources of informationThe source of our information is very important and will be a major point in utilizing the logs. We started by combining three different sources of information. Here they are:1. First, we acquired from an NSS employee a listing of NSS numbers in 1999, one year before they closed.This list gave a good framework of numbers issued by NSS from 1930, even including advance jobs past 2000. It was a great source of information for later years, but a lot of the titles released in early years had been eliminated as they were no longer available. Even some major releases, such as Gone With the Wind, had been pulled from distribution and therefore eliminated from the list. In the logs, in the Source column, these posters are marked in the Source column with a B.2.We then acquired a 1962 NSS Master Index. This was a MAJOR acquisition as NSS had just finished a complete restructure, and this was the first master index showing posters and trailers. It covered the years 1930 to 1962 very well, but we also noticed numerous problems. For example, if a title had originally been released before 1930, the re-release was handled by NSS as if it was the original release (to them it was). So when researching a title, if you don\'t know for yourself, you can\'t be sure that it\'s the original release or not. Along that same vein, when they handled ANY re-release, the earlier number was eliminated. The difference was that if NSS had handled an earlier issue, they normally marked it as a re-release. In the logs, these posters are marked in the Source column with a N. Consequently, there are NO codes in this column after 1962 except for R. (re-release)'