On Monday, December 10, Zurich, Switzerland’s largest city, admitted to losing track of 5,176 works of art. The realization came after the city performed the first full inventory of its collection that is comprised of 35,000 important pieces in nearly a century. Among the missing objects were approximately 1,400 original works including a painting by Swiss-born architect and pioneer of modern design, Le Corbusier.

Officials expect to locate most of the missing works as the city’s collection is often sent out for exhibitions and is currently spread across more than 500 locations. Zurich’s vast holdings are worth about $130 million in total, but city officials claim the missing works only account for a fraction of amount.