I have to think this concrete arm is a remnant of an outdoor statue, and certainly the arm once held something--perhaps a staff, or a basket or ring, or who knows what. I love the evocative recess left in its absence, and the iron post revealed at the other end, and everything in between! All sorts of interesting contexts for this I think, and I do believe with a little hanging hardware one could figure out how to mount it on the wall.

11 1/2" l x 3 1/2" wide and deep and weighs 3 1/4 pounds. Losses as evident but completely stable now.