"The title requested is an entire archival collection."
Answer
WorldCat/DELCAT Discovery lists many titles that may look like books or other single items. When you examine the record more closely, however, you may see that the item you requested is a collection of materials that have been archived by a library or other institution. We cannot borrow entire archival collections, but you may contact the library that owns the collection to ask about viewing the materials you need on site. For general information about the arrangement of manuscript and archival collections, please visit UD's Understanding Manuscript Collections page.