Tommi Parzinger secretary in mahogany with leather-covered doors with gold-painted diamond motif. Front panel opens to reveal shelves and compartments. Doors open to velvet-lined drawers and two shelves. American, circa 1950. For 20 years, gallery owner, author, and decorative-arts historian Liz O’Brien has been discovering the “new” old names in 20th-century American design, introducing the works of Samuel Marx, William Haines, and Karl Springer to the latest generation of trendsetters. Her distinctive point of view is guided by a passionate interest in the history of design and decoration.