This is a nice, clean, used, vintage heavy duty 18" size pipe wrench.  It is marked "RIDGID HEAVY DUTY 18".  On the other side of the handle is marked "THE RIDGID TOOL CO. ELYRIA OHIO U.S.A. 18"". The jaws have minor wear, all threads and moving parts in very good working order.  No rust, no damage.  Ready to use.  Made in Ohio U.S.A.!