These American antique frames were made in the 1860’s, though some were made in the 1840’s as well. Their technical name, as I understand it, is astragal or bolection (or bolextion). Since these terms are not widely known among people who are looking for frames, I call their profile “hump in the middle’” and this seems to provide a useful description. These antique frames were used on a wide variety of paintings. They are especially good as portrait frames, landscape frames, folk art frames, and mirror frames.