Probably "Hearing" in a series of figures representing the five senses; see IV, 89 and IV, 91.
Piazzetta created many finished drawings of heads and half-length figures in black and white chalk on blue paper. Widely imitated by the artist's numerous pupils, such sheets evidently were made for sale to collectors rather than as studies for paintings. This drawing, an allegory pf the sense of hearing, belonged to a series depicting the five senses, along with Portrait of a Young Woman in Profile (inv. no. IV 91 -- representing touch) and the Portrait of a Girl with a Pear (inv. no. IV, 89 -- representing taste). --Exhibition Label, from "Tiepolo, Guardi, and Their World: Eighteenth-Century Venetian Drawings"
Murray, Charles Fairfax, 1849-1919, former owner.
Morgan, J. Pierpont (John Pierpont), 1837-1913, former owner.
Collection J. Pierpont Morgan : Drawings by the Old Masters Formed by C. Fairfax Murray. London : Privately printed, 1905-1912, IV, 90, repr.
Stampfle, Felice, and Jacob Bean. Drawings from New York collections. III: The eighteenth century in Italy. New York : Metropolitan Museum of Art : Pierpont Morgan Library, 1971, no. 43, repr.