Silverman's Selected Antiques
From the Southeastern US, a Salesman's Sample of Louvers to ventilate Tobacco Barns. A Great Folk Art Display, measures about 15 3/4" by 23" by 3". Brass knob is patented January 24, 1860. One louver is slightly detached and knob does not adjust louvers as it did originally. You probably will not see another.