distinctive design created in paper at the time of manufacture that can be easily seen by holding the paper up to a light

folding or feeding paper into the press or folder parallel to the grain of paper

using 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

using 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

work and turn (see work and turn definition)

work and tumble (see work and tumble definition)