In 1961, Italian avant-garde artist Piero Manzoni manufactured and sold 90 small cans, each one filled with his own dung. Their lids were numbered and signed by Manzoni and each sported a label that read:
Net content 30 grammes
Preserved in its natural state
Produced and packaged in May 1961
Manzoni sold his canned dung for $US37 each, basing this on the equivalent per-gramme price of gold. In recent years, Sotheby’s has sold cans of Merde d’Artista for 124,000 euros (2007) and 97,250 pounds (2008).