This signature collection was sent in by Rob Middleton who was a research chemist in Clark involved in various film product. When I was first involved as the temporary and part time research director of film research laboratory, the first major project was to convert "random grain" film emulsion (which came from du Pont) to "cubic crystal" emulsion which became the mainstream technology of the industry for its more stable performance. The first product, Rapid Access film was code named as PQX in the laboratory and when it became a product the code name itself became the product name. The product launch was organized by Mike Adelman then the Film Product marketing manager very successfully and the PQX product became one of the major line of Polychrome products. The success came in my humble opinion not by the outstanding quality of the product but by the excellent cross departmental launch team essential in modern product launch. You will recognize many familiar names in the list from all the departments concerned, R&D, QC, production, marketing and sales. Rob was able to decode the difficult handwritings and added typed note which was not in the original signature assembly. Hope someone can recognize the last signature yet to be decoded!