License, verbatimUS-PD
The New York Public Library states no known U.S. copyright for this item. Pinax admits it as US-PD only because the work predates 1900, making public domain near-certain worldwide; status outside the U.S. is not asserted and reuse elsewhere is the user's responsibility. Credit: From The New York Public Library.
The celebrated Pas de quatre composed by Jules Perrot, as danced at Her Majesty's Theatre, July 12th 1845, by the four eminent danseuses, Carlotta Grisi, Marie Taglioni, Lucile Grahn Fanny Cerrito.. 1845 (from title). The New York Public Library.