Glossary search results: 6 Watermarkdistinctive design created in paper at the time of manufacture that can be easily seen by holding the paper up to a lightWith the grainfolding or feeding paper into the press or folder parallel to the grain of paperWork and tumbleusing the same plate and same guide, printing one side of a sheet, and flipping it from gripper to tail to print on the back of the sheet. Similar to perfecting but 2 passesWork and turnusing the same plate and common guide, printing one side of a sheet, and flipping it from left to right to print on the back of the sheetWTwork and turn (see work and turn definition)WTUMwork and tumble (see work and tumble definition)