Beatrice Bonhomme Arc en Ciel, Mixed Media, 1990 Signed by Artist. Framed size: 23″ x 26-1/2″ Framing: Matboard in contact with artwork is pH neutral, 100% cotton rag or buffered purified pH neutral board. Spacers separating artwork from glazing. Japanese paper. Protective Glazing is acrylic and UV filter.