This is the place to go in Paris for pans and cookware. It's been open since the 1800s and it's still very old school.
Upstairs the shelves are filled with kitchen tools like pastry utensils, candy molds, and tons of little shapes for tarts and amuse-bouches. There are also tons of copper - you'll find copper pots and pans hanging on all the walls. Head down to the basement, for the heavy things. There, you can find shelves of Staub pans, huge industrial size pots, and you might find some porcelain pieces as well.