 The role of chief archivist is currently filled by Patricia de Nicolaï, having assumed the presidency of the Osmothèque from Jean Kerléo in 2008.The institution also maintains a substantial reference library of fragrance bases and aromatic sources, both natural and synthetic, historical and contemporary, as well as a vault inaccessible to the public containing historical perfume formulae, many unusable due to a lack of corresponding raw materials.Rarities from the Osmothèque's collections include examples of ancient perfumery, such as the "Parfum Royal" of the Parthian kings as described by Pliny the Elder in the 1st century, medieval toilet waters such as the 14th century "Eau de la reine de Hongrie" of Elizabeth of Poland and 18th century powders such as the "Poudre de Chypre".