Historical information

These studs (pins) were used in the manual production of mapping to accurately register a number of sheets of film reproduction material together. A set of three studs were required. This simple but effective system allowed the reproduction material layers (repromat) to expand and contract with changes in temperature whilst maintaining the registration between sheets.

Physical description

Precision engineered stainless steel studs (pins) Set of three required for operation, includes a spare stud all stored in a plastic container. These studs were also produced as a low profile version for use in large format photographic vacuum contact frames so that they would not break the glass.