This is an interesting double ended wrench with a "P459" mark cast onto the one socket. The square end is 7/8" and the hex end is 1 3/16" size. The wrench is 14.25" long overall. It appears that there was a bar that fit into the holes to form a T-Wrench at one time. An interesting speed wrench! This wrench is in good condition, not rusty, no cracks.