Where’s that 38-ton Serra?

The Reina Sofia Museum in Madrid has lost a 38-ton steel sculpture by American artist Richard Serra, the museum said.

The museum, one of the Spanish city’s largest and most popular, commissioned the work -- four stark, steel slabs -- in 1986 and acquired it a year later for about $220,000. After being exhibited, it was placed in a warehouse in 1990 with a company that specialized in storing large-scale artworks.

But that company was dissolved in 1998, said daily newspaper ABC. When the museum’s director, Ana Martinez de Aguilar, decided a few months ago to display the sculpture again, no one could find it, the museum said. Police are investigating.