Related Information
More information about differences in state can be found in the article "Identifying First Editions"...
a portion of a printing with changes such as minor alterations to the text either intentional or accidental; insertion of cancels, advertisements, or insertions; copies on different paper without intention of creating a searate issue; and other changes other than folding or collating or binding. An example would be when a pressman discovers battered or broken type, stops the presses and resets that portion of the page by replacing the broken type and then resumes the printing.