Watermarkdistinctive design created in paper at the time of manufacture that can be easily seen by holding the paper up to a light
With the grainfolding or feeding paper into the press or folder parallel to the grain of paper
Work 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 passes
Work 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 sheet
WTwork and turn (see work and turn definition)
WTUMwork and tumble (see work and tumble definition)