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I next riveted the lower skin to the side panels. Then as these pictures show, I riveted all the interior pieces to the lower skin – except of course the rear spar tunnel assembly.
          And then I was done with all of the exterior rivets and bolts and I now only have ONE fuselage all framed out.

          Nice.

          A quick check also shows it is still perfectly level, square and plumb after all the riveting.  Some interior rivets remain, but those are for another post.