How do you pull an old nail that has no head? Just clamp locking pliers onto the nail's exposed shaft and slide a pry bar or a hammer between the jaws of the pliers and the surface the nail is stuck in. Apply some muscle to the hammer or pry bar, and the nail comes out with minimal sweat or swearing. My 22-year-old son showed me how to do this while working on his 100-year-old house, in Minneapolis. He taught this old dog a new trick!
Gary S. Schroeter, Chicago