Likely a brush cutter, and a broken axe handle, cut down and fitted. Most definitely restore the blades and try to keep the patina on the handles if they are serviceable, adds to the authenticity! Family heirlooms are important items!
Eric,
Is it better for a froe to be straight or a have a slight curve? I rough cut one from a truck spring and still need to bevel it and Put a handle on. I expect to keep a bucket of water by the grinder to keep it cool!
Hawkdancer