I saw this on CL the other day and the price was right at $30. Picked it up last night and it is missing a spike and weighs about 80 lbs. I looked on line and found a very similar one being pulled by a team of horses.
It looks like the hooks are how you would attach it to a draw bar. There is also two holes located on one of the cross bars. These holes could be used to link other harrows together? I think I could also pull it upside down to level out gravel or dirt. What do you think?