This is an Astramilano AMP50 portable gasoline water pump, commonly used for agricultural irrigation, draining flooded areas, and general water transfer.
Engine: Gasoline powered (7.5 HP engine indicated on the side label)
Model: AMP50
Outlet/Inlet Size: 2-inch (50 mm) connections
Frame: Heavy-duty steel protective roll-cage frame with rubber mountings to minimize vibration