I think that by "dubious" it means that it is another unknown maker. One that eats away at your mind! I am waiting to hear if anyone else has seen the tang marking this dagger has. I think that is a big "clue" as we have not heard of any others so far... Also, Skyline might be on to something. These "clues" are what are going to help at least get an idea of who this maker is. Does anybody else out there own one of these daggers? How many have been seen or known to have traded hands? I am getting the impression that the 188 marked pieces are not very common based on the limited replies from people with experience with these. So far, Dave H. is the only one to have seen one.