WattsOSDSDesert Seal (Prototype)2004 · Polyurethane-coated polyester fibre and silver coated mylar6'10 3/4" x 39 1/2" x 7'2 1/2" (210 x 100 x 220 cm)Museum of Modern Art
WattsOSPEPortable equatorial sundial1761 · Gilded brassOverall: 2 7/8 × 2 1/2 in. (7.3 × 6.4 cm)The Metropolitan Museum of Art