The collection is comprised of rolled film from the Mariner 10, Voyager and Viking missions. The rolled film have been identified as Master Positives or Duplicate Negatives. The film is duplicates of what the Regional Planetary Image Facility (RPIF) has according to most recent documentation. They are of various widths and sizes, and no effort was made to distinguish the sizes in the register. There are a total of 1155 rolls of film in the collection. The collection is divided by flight project into four series: Mariner 10, Voyager, Viking Landers and Viking Orbiters. Mariner 10 (Boxes 1-51). This series includes 579 rolls (287 Master Positives, 233 Duplicate Negatives, 59 unknown). Voyager (Boxes 52-80). This series includes 171 rolls (114 Duplicate Negatives, 57 Duplicate Positives). Viking Landers (Boxes 81-93). This series includes 54 rolls of uncut prints. Boxes 90 through 93 contain black & white prints, many with corresponding sleeved negatives of images of Mars. These were taken from Viking Landers 1 and 2, for the JPL Image Processing Laboratory. Each print is 5" x 10" in dimension, and is bordered by tick marks representing line and sample coordinates. Grey scales are present at both the left and right sides of the image. The date and Image Processing Laboratory picture identification number are also present. There are 1163 prints and 216 negatives in the boxes. Viking Orbiters (Boxes 94-157). This series includes 352 rolls of Duplicate Positives.
