Box – A Quarter Circle Box – A Quarter Circle Mayumi Miyawaki — Shinjuku City, Tokyo, Japan (1975-76)MarcelJune 24, 2026
Matsukawa Box Matsukawa Box Mayumi Miyawaki — Shinjuku City, Tokyo, Japan (1972-78)MarcelJune 24, 2026
Fukumura Box (White Triangle) Fukumura Box (White Triangle) Mayumi Miyawaki — Nasu, Tochigi, Japan (1974-75)MarcelJune 24, 2026
Hayasaki Box (Blue Box) Hayasaki Box (Blue Box) Mayumi Miyawaki — Kaminoge, Setagaya, Tokyo, Japan (1971)MarcelJune 24, 2026
