I spent part of the day taking bottom planks off my next restoration project.  Its falling apart in my hands. If it wasn't such a rare boat i wouldn't be doing it. How rare? Well, one of three known to have survived.  Its a  1929 20' Dodge run about. Its slow going right now because the hull is so out of shape and rotten that i have to straighten, brace and remove parts carefully so it wont crumble into dust. 

There are some interesting things about the fasteners on this boat. The screws holding the bottom planks on are not countersunk. They are driven just below the surface. The filler that remains is soft almost waxy. It cleans out of the screw heads easily.  Much nicer then other boats i have done where getting to the screw head is only the beginning of the arduous process of removal.