Units of paper quantity Units of paper quantity Various measures of paper quantity have been and are in use. Although there are no S.I. units such as quires and bales, there are ISO and DIN standards for the ream. Expressions used here include U.S. Customary units. A quire of paper is a measure of paper quantity. The usual meaning is 25 sheets of the same size and quality: of a ream of 500 sheets. Quires of 25 sheets are often used for machine-made paper, while quires of 24 sheets are often used for handmade or specialised paper of 480-sheet reams. (As an old UK
Postage stamp paper any other kind of paper. "Wallpaper" is the slang name given to the sheets of stamps that have little or no philatelic or monetary value. Philatelically, stamp paper can be partitioned into a few large groups. The first that is typically encountered in the stamp catalogs describes the texture of the paper, such as wove or laid. Many stamps have been printed with these different paper textures. Other groups can be formed as: Colored paper, safety or security paper and coated paper. In a stamp catalog, a stamp's paper is usually identified at the beginning of the issue. It will