HI all:
Very interesting topic and replies.
I ran across a very interesting tie beam and vertical post joint in an 1846 muley blade saw mill. The tenon that passed through the post was dovetailed on the bottom side only and on the upper flat side of the dovetail it was wedged from the outside. This seemed to do away with the shrinkage problem hat may have happened over the 150 + years that could have loosened the frame.
Hope this helps
NH
