ATK-F-038503-0000 While Teacher Sleeps.,Oil/Wood,19th century,Genre,Dargelas,André Henri,1828-1906 Credit: Christie's Images / Artothek/Alinari Archives WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Collection: Artothek/Alinari Archives Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 3800 X 3070 Image sizes (cm at 300 dpi): 32 X 25 Image sizes (MB): 3.58 Color space: RGB