The value of L. N. Benjamin "The St. Albans Raid or an Investigation............" (1865) depends upon whether you have an actual first edition or a reprint. If you have a first edition the only original copies I've ever seen for sale were published with a blue paper cover or rebound. These original 1865 copies are not very sturdy and deteriorate easily. Obviously, the book's edition, overall condition, and demand for copies at the moment will determine its value. Original copies in good condition rarely come up for sale, but usually bring several hundred to a thousand dollars apiece.

Dan