Nancy Genn "Ostia-Antica" and "Tiber" vitreograph

NANCY GENN (American 20th century) "Ostia-Antica, 1990" and "Tiber, 1990" Vitreograph. Sheet: 41 1/2 x 29 1/8 inches; Frame: 46 1/4 x 33 3/4 inches. Sheet: 41 x 29 1/8 inches; Frame: 46 3/8 x 33 3/4 inches. Signed and dated lower right: Nancy Genn 1990; titled bottom center: "Ostia-Antica" and numbered lower left: 6/40. Signed and dated lower right: Nancy Genn 1990; titled bottom center Tiber and numbered lower left: 6/40.