Lot of 10 Hardy Boys books by Franklin Dixon- 41-51 books (missing book 44).  Glossy blue 41,43,45, 46, 51.  Orange Book-42-retired library book.  Vintage 47-50 (1968-1971).  All hard books, and different publishing dates. Pre-owned in good condition.  There is some minor wear on the covers, some writing, and stickers.  The pages aren't torn, but there is writing, staining, and yellowing.  Item sold as is, no refunds.