3 min read · 30 Apr 2026

unus solus totus. Image courtesy of Dorotheum
Otto Piene, unus solus totus, is due to be sold at Dorotheum in Vienna on May 20, 2026 with a $70,300 (EUR60,000) to $93,700 estimate.
It last sold at auction in 2021 for $87,800 at Ketterer Kunst. The current low estimate is 3% higher than its previous low estimate of $67,900.
Oil, fire, soot on canvas, 70.0 x 95.0cm. The work has been traded 3 times in the past.
Get the HENI News Daily Art Digest delivered to your inbox