These perforations, typically located along the spine-edge margin of a book’s cover boards, serve a specific purpose in library and archival settings. They accommodate metal posts or rods used in specialized shelving systems, ensuring secure storage and convenient retrieval of volumes. An example would be the storage of large or frequently used reference books in a public library.
This method offers several advantages. It prevents books from slipping off shelves, reducing the risk of damage. It also facilitates efficient organization and access, particularly for heavy or oversized volumes. Historically, this approach evolved alongside the growth of libraries and the need for practical storage solutions for expanding collections. Such systems offered a robust and adaptable alternative to traditional shelving, enabling libraries to accommodate more materials while preserving their condition.
