A serene, minimalist watercolor on canvas by Swiss artist Ugo Rondinone, featuring two horizontal bands of contrasting greens — a yellow-green upper field and a vivid emerald lower band — punctuated by a single teal circle in the upper right quadrant. The work belongs to Rondinone's ongoing series of date-titled paintings, where the title translates from German as 'twenty-first of May two thousand and twenty-three.' Presented in the artist's signature natural wood frame, the raw, unprimed edges of the canvas are left visible, reinforcing the handmade, meditative quality. This is a unique work — not an edition — making it an exceptionally rare and collectible example from this celebrated series.