Portrait of Anne Allou drawing, l'optique (title on object), Portrait of Anne Allou (born Raguenet) the wife of artist Gilles Allou, holding a chalk holder in her right hand. She is drawing an anamorphosis, a distorted representation that looks realistic when using the mirrored cylinder that stands in the background. With caption in French. print maker: Michel Dossier, (mentioned on object), after painting by: Gilles Allou, (mentioned on object), publisher: Henry Louis Basan, (mentioned on object), Paris, 1737 - 1750, paper, engraving, height 297 mm x width 318 mm.