Timber Framers Guild Forums General Barns and Traditional Timberframing Pegs -- riven, sawn, drawn, turned, driven, etc?

I think it is in one of Sobons books where there is mention of pegs at the eve to support a gutter. The gutter just sat on the peg, not through it. They found evidence of peg holes along the top plate which suggested a gutter? The original gutter system of course was long gone. Tim