What is the NSS marking/number?
Most one sheets had a National Screen Service line at the bottom in the white border. The number looks like this: 66-436. The first number is the release year, the next is the film number. So you can tell that 66-436 came out in 1966 and was the 436th release that NSS printed that year. Of course, there are exceptions. Some one sheets may not have the NSS number. Instead you may find simply the name of the movie followed by the words one sheet. Or you may find only the NSS disclaimer (this poster is the property of National Screen Service… and must be returned or destroyed after use.”) Or you may find nothing!
