This series was loosely based on adaptions of engravings after the drawings of Jean-Baptiste Le Prince, a student of Boucher, who recorded Russian life of the 18th century. At great personal risk, Le Prince travelled to Russia and made a series of drawings which he later etched. These etchings formed the basis of the Cris de St. Petersburg Series. See the similar figure illustrated by Melitta Kunze-Köllensperger, Collection Franz E. Burda, Augsburg, 1997, p. 140, no. 61.