Signed and numbered 12/16 in pencil, and with the artist's blind stamp, lower margin * Sounds Cut II, 1980. Artist's proof, aside from the edition of 185. Signed and inscribed "AP" in pencil, and with the artist's blind stamp, lower margin * Odon I, 1981. Signed and numbered 54/185 in pencil, lower margin. Signed, dated and numbered 11/125 in pencil, lower margin