Signature Recto, bottom right, in the artist's hand in grey/silver ink: PATRICK NAGATANI
Marks Recto: none
Inscription Recto, below image, in artist's hand in grey/silver ink, from left to right: "CONTAMINATED RADIOACTIVE SEDIMENT, MORTANDAD CANYON, LOS ALAMOS NATIONAL LABORATORY, NEW MEXICO" 1990 1/24
Provenance Patrick Nagatani (b. 1945); purchased by the Birmingham Museum of Art, Alabama, 1990