Uncut Sheet: When cards are printed in the factory, they are printed on large sheets, with something around 120 cards on each sheet. Sometimes it's 100 or 121 or 132. Sometimes it's a smaller subdivision of a larger sheet. The overall size depends usually on the size of the set and maybe the printing technology used. These sheets are occasionally found for sale, though in most cases they are stolen property. Until the last few years, they were only rarely made available by the card makers. They are still rare, but there are some authorized special editions floating around.