In his guide Promenades au musée de Saint-Germain, published in 1869, Gabriel de Mortillet described all the rooms open to the public. One of the rooms on the second, and top, floor of the museum was the salle du Trésor, where the most precious objects in the museum’s collections were on display, including the vase discovered at Alise and the numismatic collections. The next room contained the museum’s collections from lakeside pile dwellings, followed by a room dedicated to the Bronze Age and, finally, a room dedicated to the Gauls.