M.C. Escher and the crystal ball he used for his famous self portrait from 1935 [550x455] : r/HistoryPorn
VIA on Twitter: "Between Light and Shadow: Black and White Crystal Ball M. C. Escher Inspirations #PhotoOfTheDay #VPai360 #360photo #littleplanet #photoset https://t.co/938ObMJUJm" / Twitter
Hand in Reflected Ball Stock Photo - Alamy
Reflecting Crystal Sphere - Shirtoid
M C Escher Sphere - Etsy UK
TimePirate.org: Homage to Escher
Escher- Reflections, Crystals & Platonic Solids
Hand with Reflecting Sphere | Inspired by M. C. Escher's 193… | Flickr