New, Unused Stored Item Found while cleaning out the warehouse. Stored without use. Copy-Prevention Paper: 8 books, 800 sheets Set of 100 sheets x 8 books This is a special type of paper that was apparently sold to government agencies and other organizations for 100 to 200 yen per sheet. Due to the light-reflecting properties of this special paper, when copied on a copy machine, the copy will appear blacked out, making the information unreadable. This prevents unauthorized copying of confidential documents and important drawings.