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Details of the hinge and shutter panel arrangement are shown in the drawing to the right. The shutter frame has a small recess milled to the width of the hinge flange. The hinge flange was then glued in place with 5 minute epoxy and covered with a small filler block on the rail to hide it. The shutter was then sanded to a smooth finish and pained with two coats of primer and two coats of finishing paint.
Here is a view of the shutter details and how they work. On the left of the window, the still folded shutter is slightly pulled away from its holding pocket. The shutter to the right is opened only half way on the top and completely on the bottom. When all four sections are totally unfolded, they completely cover the window.
Here is the shutter placement folded closed with a window in place. This arrangement is true for the east and west facing windows.
On the four north facing windows, the shutters fold back into an angled side pocket instead of laying flat against the inside wall. This arrangement allows adequate space for the chimney walls.

Here you can better see the side wall pockets for the folded shutters, completely closed  on the window to the left and slightly opened on the window to the right.