Vintage Melnor traveling lawn sprinkler

It's a vintage Melnor traveling lawn sprinkler made of heavy cast iron. The body is shaped like a small, old-fashioned tractor and is painted green. It has two large, spiked rear wheels for moving across the grass and a small front wheel that guides it along a garden hose. On top, there are rotating metal spray arms. At 17 lbs.. it's heavy duty!