This plate reveals the artist's unusual approach to lithograp: "when the artist worked at the lithograph workshop of Nova Scotia School of Arts, his focus was centered on the physicality of the printing stones rather than of the qualities of the printing ink" (Amy Baker Sandback). As in 'Two Stones', executed the same year, the shape of the printing tool "became the graphic key", here reinforced by the use of white ink. For comparable literature: Amy Baker Sandback, Robert Ryman prints, 1969-1993, Parasol Press, Ltd.,New York, 1993.