It's pot metal, three screws holding it together. It has a sharp rolling disk inside. Looks like it can be held in the palm of your hand to cut something. Maybe leather, carpet, or Pizza. It's at a thrift shop in Frasier, CO.
Looks eastern like India or Pakistan. Probably a decorative bread cutter, like for naan or pita type bread. It would be very unusual to see a craftsman's daily use tool (like for leather or carpet) with such ornate casting.