Signed book: The Jungle. Later printing. NY: The Jungle Publishing Co., 1906. Hardcover, 5.25 x 8, 413 pages. Signed and inscribed in fountain pen on the first free end page, “To Charles M. Eaton, with the compliments of Upton Sinclair.” In very good condition, with uniform blocks of toning, scattered soiling affecting some of the signature, collector notation at the top of the page, partial separation of the front board along the hinge and along the spine, and mild soiling and staining of the front and back boards. RRAuction COA.