Kolar, Joseph. The Great Kolar’s Puzzle Reference Library. Late nineteenth—early twentieth century. Approximately 25 volumes, with Kolar’s inked reference numbers to covers, most re-bound with or without original wrappers, several with Kolar’s ownership signatures, plus a file of loosely-issued paper puzzles and packets, a bound volume of patents to puzzles, with diagrams, and a scrapbook of puzzles clipped from newspapers and other publications. Some titles also pertaining to mathematical recreations, toys, and amusements. Authors include: Sam Loyd, Arthur Good, Professor Lorento, Archibald Reith, Professor Hoffmann, A. Cyril Pearson, John Scott, H.E. Dudeney, and others. Illustrated. 4to and 8vo. An often-referenced collection, many volumes heavily worn and annotated, bindings in need of repair, some torn or removed pages. An interesting archive that should be seen.