2011_ ‘Mari Thirteen’, an edition of Mari’s autoprogettazione chair, Sedia 1, by Jonathan Monk VIA The design calls for 13 pieces of wood, so Monk used thirteen different types of wood, none of them pine: Koto, Padouk, Ash, Maple, Oak, Cherry, Pearwood, Wengé, Afzelia, Ovang, Mahagony, Birch and American Nutwood. artist, Enzo Mari, furniture design, Jonathan Monk 2010's, chairs