Installation views of Sydney Ball: Modular, Bonython Art Gallery, Sydney, 1969.

Zonal Turn , 1968 - 1969, acrylic on canvas and enamel on plywood, 185 x 180 cm.

Zonal Turn, 1968 - 1969, acrylic on canvas and enamel on plywood, 185 x 180 cm.

Temple , 1968-1969, enamel on glider plywood, 81.5 x 243.5 x 2.5 cm. Collection of Penrith Regional Gallery, Penrith.

Temple, 1968-1969, enamel on glider plywood, 81.5 x 243.5 x 2.5 cm. Collection of Penrith Regional Gallery, Penrith.

Beam , 1969, synthetic polymer paint on canvas, 152 x 228 cm.

Beam, 1969, synthetic polymer paint on canvas, 152 x 228 cm.

Strata Span , 1968-1969, acrylic on canvas and enamel on plywood, 229 x 457 cm. Collection of the Art Gallery of South Australia, Adelaide.

Strata Span, 1968-1969, acrylic on canvas and enamel on plywood, 229 x 457 cm. Collection of the Art Gallery of South Australia, Adelaide.

Reach , 1968-1969, acrylic on canvas and enamel on plywood, 178 x 457 cm. Collection of the University of South Australia, Adelaide.

Reach, 1968-1969, acrylic on canvas and enamel on plywood, 178 x 457 cm. Collection of the University of South Australia, Adelaide.

Black Reveal , 1968-1969, synthetic paint on canvas and enamel on glider plywood, 157 x 290 cm. Collection of the Art Gallery of NSW, Australia.

Black Reveal, 1968-1969, synthetic paint on canvas and enamel on glider plywood, 157 x 290 cm. Collection of the Art Gallery of NSW, Australia.

Modular Series (installation view)

Modular Series (installation view)