Costume designs for Giacomo Meyerbeer's Les Huguenots, No 2. Julie Dorus-Gras as Marguerite, Adolphe Nourrit as Raoul, and Cornélie Falcon as Valentine, for the Académie Royale de Musique-Le Peletier performance that opened 29 February 1836. Watercolour; probably 210 x 310 mm (Gallica lists ranges when multiple objects are in a set. The exact description is: "aquarelle ; H. 120-210 x L. 080-310 mm - of which I'm presuming the smaller numbers refers to the single drawing. The crop is minimal.)
Original public domain image from Wikimedia Commons