WattsOSNGNaum Gabo letterhead (Letter to Arthur Cohen)1977 · Letterpress11 × 8 1/2" (27.9 × 21.6 cm)Museum of Modern Art
Cover Design for a Portfolio of Prints1975 · Wax crayon, print and stencil on papersupport: 511 x 432 mmTate
Model for ‘Construction in Space, Suspended’1965 · Plastic and nylon threadobject: 108 x 102 x 38 mmTate
WattsOSTVTorsion--Bronze Variation1963 · Gold-plated bronze and stainless steel wires28 1/2 x 28 x 28" (72.4 x 71.1 x 71.1 cm) including wood baseMuseum of Modern Art
Linear Construction No. 41958 · Aluminum and stainless steel83.9 × 69.9 cm (33 × 27 1/2 in.)Art Institute of Chicago