The collection is worth millions, perhaps hundreds of millions of dollars, and contains tapestries, antique silver, and 1,500 oil paintings on canvas, including works by Rembrandt, Frans Hals and a half dozen by Peter Paul Rubens.

But this is not a museum collection or the private trove of a single wealthy art collector.

It is known as the Dutch Art Collection (Nederlands Kunstbezit-collectie, or NK Collection), and consists entirely of art and cultural objects that the Allies repatriated to the Netherlands from Germany in the wake of World War II. Its current custodian is the Dutch Cultural Heritage Agency, which loans the artworks to Dutch museums, embassies and government buildings.

Most of the works were looted from Jews who had been deported or killed in concentration camps, while others were sold under duress. Some have no known history.

For decades, they have been labeled “heirless” or “orphaned” property by the Dutch state, and have remained in the custody of the cultural heritage agency, some on loan to museums, and others in storage at a large warehouse in Arnhem.

But on Wednesday, a committee appointed by the Dutch government two years ago to address the quandary of what to do with the art issued a report that set out what it described as a feasible plan to settle the issue going forward.