Wooton Patent Cabinet Office Secretary Desks came in four different grades, ordinary, standard, extra grade, and superior grade. White Hall has a standard grade desk, which Cassius M. Clay originally owned and then passed on to his son Brutus Clay.
For additional information:
The King of Desks: Wooton’s Patent Secretary
Betty Lawson Walters, author
Wooton Patent Desks: A Place for Everything & Everything in its Place
J. Camille Showalter and Janice Driesbach, editors