In the heart of The Louvre in Paris, the decorative arts department counts nearly 22,000 pieces, 8,000 of which are on display due to their fragility. Dedicated to the 18th century, the Cressent rooms in the Richelieu Wing are among the museum’s “best-kept secrets – furniture, objects, tapestries, paintings and more — from the royal manufactures as well as Royal collections. The royal family avidly collected consoles, clocks, desks and armoires by this sculptor and cabinetmaker, whos...