• Escher's Ladder
• 1983
• laser cut plywood
• 12 x 12 x 12 in / 30.5 x 30.5 x 30.5 cm
• RIKA0001

• Unit
• 1983
• laser cut plywood
• 6 x 6 x 6 in / 15.25 x 15.25 x 15.25 cm
• RIKA0007

• Cubic Tetrahedron (3d iteration)
• 1982
• wood, automotive lacquer, glue
• 11.8 x 13.75 x 12.2 in / 30 x 35 x 31 cm
• RIKA0006

• Cantordust
• 1981
• spray paint on wood
• 13.75 x 13.75 x 13.75 in / 35 x 35 x 35 cm
• RIKA0005

• Nine Square Seed
• 1978
• acrylic on canvas
• 48 x 48 in / 121.9 x 121.9 cm
• RIKA0002