English: Nobuo Sekine "Phase—Sponge", 1968 Steel plate, sponge, 130 x 120 x 120 cm Installation view at Museum of Contemporary Art, Nagaoka Courtesy the artist, photo by Eizaburō Hara
日本語:関根伸夫による《位相-スポンジ》1968年
鉄板、スポンジ、 130 x 120 x 120 cm 長岡現代美術館での展示風景 Courtesy of the artist, photo by Eizaburō Hara