American School, mid-20th c., "Black Abstraction", 1990, and "Geometric Study in Brown", 2 mixed media works on paper, former illegibly signed and dated lower right, 8 in. x 11 3/4 in. and 14 1/4 in

Black Geometric Geometric decoration Geometric detailing Black body Black Americana Geometric vessels Bright colors some geometric shapes Black metallic glazes Black ash Black-on-black [blackware] Simple geometric