Antique hand harvesters field scythe with long handle, grim reaper of death style. This was used to cut hay or grain (not corn, but wheat, rye, oats, etc.) in the field, before horses, and then tractors, took over the work.
The blade on this one is in good shape, though not sharpened for many years. (The blade is 24" long.) The wood handle is very weathered and worn.