Embriachi Workshop, Italian, Venice, 15th century, Games box with backgammon and chess. Photo courtesy Sotheby's certosina wood, horn and bone; 6 by 15 by 18cm., 2 3/8 by 5 7/8 by 7 1/8 in. Estimation 4,000 — 6,000 GBP Sotheby's. European Sculpture &...