met-egyptian-art:Grinding slab, Egyptian ArtMedium: SerpentiniteRogers Fund and Edward S. Harkness G
met-egyptian-art:Grinding slab, Egyptian ArtMedium: SerpentiniteRogers Fund and Edward S. Harkness Gift, 1922Metropolitan Museum of Art, New York, NYhttp://www.metmuseum.org/art/collection/search/556957 -- source link