More than 30 years after it was stolen from a French museum, Camille Pissarro’s “Le Marche aux Poissons” (“The Fish Market”) was handed over to the French ambassador by U.S. Immigration and Customs Enforcement on Wednesday.

The roughly greeting-card-size work is a color monotype, a one-of-a-kind print made by painting on glass and then transferring the wet paint to a piece of paper.

Wednesday’s return was staged in a hall of a Washington museum filled with other French impressionist works, including some by artists who were inspired by Pissarro.

The customs bureau said that since 2007 it has returned more than 2,500 items to more than 22 countries.