Figure 5 Masonic chair, Union Kilwinning Lodge No. 4, Charleston, South Carolina, ca. 1770. Mahogany; ash slip seat. H. 53 1/2", W. 27 1/2". (Collection of the Museum of Early Southern Decorative Arts.) The painted square and compass cover an original inlaid plumb rule, indicating that this chair served the senior warden of the lodge.