Some photos from the attic of the 1747 Meeting House in Cohasset:
This image shows the joint in the middle of the second truss from the north end. The ends of the trunnels (treenails) are clearly visible, as are the adze marks.
This photo shows an unusual joint between a beam and a post. This kind of joinery probably resulted because the carpenters also built boats. This photo was taken along the north wall where the Meeting House butts into the tower. The beam across the top of the photo is sawn, not hewn, and is from a later repair. In the background, you can see a PVC pipe, and coaxial cables running up to the cell phone antennas in the steeple.