Twenty-four pairs of shutters cover the facade, no two alike. The Cooperative Sample Shutter House appears to be a one-story former sales office maintained, at least nominally, by the Syndicat des Menuiseries Rurales du Blaisois, with each window fitted in a different material, hinge pattern, and slat spacing once offered to municipal buyers and farm cooperatives. The hook is a painted board near the lane listing comparison criteria in unusually granular terms, including "audible closing character" and "winter warp tolerance," with handwritten annual scores that seem to stop in 1997. A local bakery receipt taped inside the glass suggests someone still opens it on Thursdays, though whether for visitors, committee business, or storage has not yet been established.