B66-768 REFERENCE WORKS. Knight's American Mechanical Dictionary. The original three-volume work, first published in 1876, plus the supplemental one volume New American Mechanical Dictionary issued in 1882. All four volumes are hardbound, 7-1/2" by 10-1/2", each containing in excess of 900 pages and hundreds of engravings. Unfortunately, one board has become detached from each volume and the spines are also partially detached and, in the case of Volume II, about half missing. However, the pages are all there and still attached, with some foxing, and you could have them rebound if you were so inclined. A fully bound original set will run you over $400. Knight was a patent lawyer and physician who worked for many years for the patent office; he began the Official Gazette of the patent office and developed the first systematic method of organizing patents. An indispensable reference work for the golden age of American invention. Good- 120-240