John Keal Brown-Saltman Convertible Bar Cart. John Keal, active mid-20th Century. Maple bar cart on wheels, with gear and lever shift to pop-up a lower level shelf and convert the cart to a table. '78 Tea Cart' stamped on the top shelf. United States. Circa 1955. {Approximate dimensions: 27 1/4 high x 36 wide x19 1/2 inches deep.}. Condition: Minor wear throughout, including scratches and stains to the finish. Wear to the metal surfaces.