$92.50
Up for your consideration is a Yuma Prison Ball and Chain.  It is super heavy and weighs around 18lbs.  The ball is solid Cast Iron and the finish is a rusty antiqued patina.  There is a key for opening the leg shackle.  The ball measures approximately 4.25" in diameter.  It makes for a great conversation piece.  Rusty Patina, but it is a new replica item.