Method and Apparatus to Appreciate Iroha (MATA IROHA) began with an apparently simple question: how might the act of looking at a sculpture be prolonged? In an age of fleeting attention, when studies suggest that the average time spent looking at an artwork is around ten seconds, Dunhill and O’Brien devised a process that enabled them to attend more fully to a sculpture in the museum’s collection that had quietly caught their attention. Over the course of the project, I, RO, HA…N completed in 1979 by Mogami Hisayuki, became their conversational partner.
That conversation grew into a method and apparatus involving more than one hundred participants in a chain of translations—from object to language, to clay, to digital information, and back again into sculpture. Through this sequence of translations, the artists, together with others, repeatedly encountered, interpreted and physically engaged with the original work. The process itself became a collaborator—perhaps even the author—of a second sculpture. It became Dunhill and O’Brien’s way of appreciating, questioning and responding to I, RO, HA…N through sculpture itself.
METHOD
A research visit to Tokyo Metropolitan Art Museum shaped two key aspects of the project. It confirmed Iroha, a sculpture first encountered on the museum’s website, as its focus. It also led to the construction of a life-size (1:1) platform and wall structure based on the dimensions of their London studio. Within Mayekawa Kunio’s monumental 1975 sculpture gallery, the platform became both a familiar making space and a raft-like plinth for the work.
Meeting the basalt sculpture IRL proved to be a powerful experience. I, RO, HA…N is a boulder quite literally inscribed with language. Its title refers to an 11th Century poem, Iroha (いろは), sometimes ascribed to the Buddhist philosopher Kūkai (空海) (774–835). It is a perfect pangram containing each of the 47 kana syllables that make up the Japanese language. By carving these kana characters into raw basalt, Mogami translated its philosophical ideas into sculptural form.
Contemplating Mogami’s sculpture Dunhill and O’Brien wrote a descriptive text reflecting on its physicality. This same text was used by over one hundred people during visits to their studio in London and workshops held in Tokyo. Equipped only with the description, 1 kilo of clay, and thirty minutes, each produced a distinct three-dimensional form.
Each of these clay objects was carefully studied and captured using photogrammetry. A 3D printer transformed this digital information back into a series of objects. Then in the virtual space of a computer the same forms were amalgamated to generate a ‘mash-up’, a single collective object.
The final stage of the method saw this ‘mash-up’ scrutinised with the help of a 3D pantograph.
APPARATUS
Dunhill and O’Brien used their home-made pantograph, based on a nineteenth-century sculptor’s tool, over a five-day period to plot and enlarge the ‘mash-up’ to a scale closer to Mogami’s sculpture. Employing traditional sculpture techniques and materials, they gave physical form to the conversation with I, RO, HA…N
MATA IROHA
Abbreviation ‘MATA IROHA’ また いろは translated back into English becomes ‘Once More the Basics’
The installation comprised the platform with framed wall structures, the large-scale plaster sculpture on a motorised turntable attached via a chain and motor to the ‘mash-up’ on a smaller turntable; the 5.5 metre long 3D pantograph with its 3.5 metre high wooden gantry; a 3.33 minute subtitle video of the descriptive text; the library of over one hundred 3D printed forms; and a pinboard documenting visual research and references.
Materials employed included wood, plaster, steel, chicken wire, cardboard, plant-based plastic filament, an electric motor geared to run at 1RPM (turning for 1 minute every 30 minutes), rope, sand weights, a monitor, photographic prints and photocopies, and map pins.
Method and Apparatus to Appreciate Iroha (MATA IROHA)* was made for the exhibition Pleasure in Making at Tokyo Metropolitan Art Museum. The exhibition, curated by Hayato Fujioka, ran from July to October 2025, following residencies hosted by Kaetsu Ariake High School and HAKUTEN, Tokyo.
ACKNOWLEDGEMENTS:
Dunhill and O’Brien’s participation in the exhibition Pleasure in Making was made possible thanks to financial support from The Daiwa Anglo Japanese Foundation and Tokyo Metropolitan Art Museum.
Special thanks are due to: Yoshinori Takakura and the team at Kaetsu Ariake Junior High School; Yousuke Nakazato and the team at HAKUTEN; the exhibition’s curator Hayato Fujioka and the curatorial team and team of Tobira at the Tokyo Metropolitan Museum of Art; sculptor Claire Fujita who acted as project assistant and analogue technician, and architectural technologist Hiroaki Yamane who provided expert digital support.
PROJECT PARTICIPANTS
Dunhill and O’Brien would also like to express their thanks to the project participants for their openness and ingenuity:
Tomoko Ido; Mariko Igari; Satoshi Ikeda; Sakuya Ishida; Mayumi Ishizawa; Nick Eagleton; Yumi Hayashi; Keiko Haseyama; Nicolai Hart-Hansen; Jeremy Herbert; Satomi Baba; Angela Baum; John Barker; Parata Kikuchi Kiwa; Akiko Nishida; Mika Nishiyama; Charlotte Hodes; Mick Hawksworth; Nick Haeffner; Nick Heaf; Sarah Baylis; Steve Bell; Deborah Paige; Masami Tougasa; Penny Driver; Lau Tong Han; Owen Leach; Nathalie de Leval; Rempei Washizu; Junpei Kaneko; Marisa Kageyama; Marjorie Allthorpe-Guyton; Julia Galvin; Takumi Takahashi; Yoshinori Takakura; Rie Tanabe; James Dunhill; Becky Leddy; Miyako Someya; Fang Chol Seo; Hiromi Nemoto; Mina Nakagawa; Yosuke Nakazato; Takehide Murakami; Rena Murata; Reo Murase; Junko Uchiyama; Ren Wolfe; Sachiko Ueda; Rie Umemura; Hiroaki Umemura; Sarah Wigglesworth; Reiko Nogami; Sean O’ Brien; Utaha Kurokawa; Hiromi Kubota; Yumiko Kuramochi; Clare Cooper; Graham Cooper; Hiroaki Yamane; Daisuke Yamanaka; Azumi Matsumoto; Agalis Manessi; Sandie Macrae; Dorian McFarland; Rob Kessler; Pat Frik; Helen Frik; Claire Fujita; Hayato Fujioka; Jem Finer; Marcia Farquhar; Mick Finch; George Blacklock; John Plowman; Komada Naoki; Paul Coldwell; Jinx Godfrey; Melanie Gautier; Aya Endo; Judo Tezuka; Jeremy Till; Paul Dale; Richard Ireland; Danielle Arnaud; Yuko Aono; Naoyo Asano; Sonia Ashmore; Jonathan Ashmore; Shuori Saito; Dani Salvatori; Anna Sasaki; Hiroko Kihara; Momoko Kihara; Douglas Gill; Miina Takezawa; Yuki Miyake; Miyoko Shigeta; Kate James; Takako Jin; Nicola Streeten; Gill Smith.
(names listed according to the I, RO, HA ordering system, thanks to Iku Fujioka)
The exhibition Pleasure in Making featured works by: Taku Hisamura; Kengo Noguchi; Dunhill and O’Brien; Natsumi Seo; Kurumi Wakiki with architectural practices Akihiro Ito and studiomegane.




























































































