In my last conversation with Jack Sobon, I asked him what area of timber framing was least researched, and he said that markings were in need of attention. It was an interesting moment, as that was my opinion as well, having had no luck looking into them in the past. I have been trying to take it upon myself to look into the matter, but don't have any idea where to begin, really. I am going to try to get an accurate map of the marks on this barn I am surveying, as well as an estimate of the date of construction, and region of the builder. It appears to have German roots.