François Bonvin, La Veillée Signed in pen and black ink lower right: f Bonvin 23,8 × 17,5 cm Pen and brown ink and brush in brown, black and grey on laid paper Formerly Robert Noortman Gallery, London, and Private Collection, USA François Bonvin. Pittsburgh, The Frick Art and Historical Center, 1999, cat. no. 84, ill. Auction catalogue. Paris, Hôtel Drouot, 12./13.3.1888, cat. no. 2 / Gabriel P. Weisberg: Bonvin. Paris, Ed. Geoffrey-Dechaume, 1979, ill. 332