First edition, second state of The Jungle by Upton Sinclair.
Octavo, 413pp. Publisher’s green cloth, title stamped in white on spine, front cover with industrial illustration. Light rubbing to spine title and front cover illustration, publisher’s name on spine rubbed and difficult to read. Solid binding. This is the second issue, with “1” on the copyright page with perfect type and Doubleday imprint on title page.