The Sleeping Bacchantes (Les Bacchantes endormies). 1764.

After the original by F. Boucher.
Engraving, etching. 435 x 355.
Engraving in sanguine.
The margins are cropped.
The author and title of the engraving were established on the basis of a comparison with similar engravings of R. Gaillard, that is kept in the Metropolitan Museum of Art (New York) and the Harvard Art Museum (Cambridge, USA).
A variant of the original painting by F. Boucher was auctioned in 2020. – See:
https://www.mutualart.com/Artwork/-Les-Bacchantes-Endormies-/EC756249962F907E
Inv. G 509.
Boucher, François (1703, Paris – 1770, Paris) – French artist and engraver of the Rococo era.