Search Only Images Visit Image Gallery FAQ page Visit Image Gallery FAQ imggal_sm2.png Portrait of Denis Diderot Download this image Image ID: SIL-SIL14-D4-01 Supplied Caption: Portrait of Denis Diderot. Engraving by Thomas Ryder, 1746-1810. Tag(s): Encyclopedist, Diderot, Denis, 1713-1784 Collection(s): Scientific Identity Topic(s): Reference Works Download: Image No Copyright - United States Request copy of image How can I use this image?