This is an old mahjong tile. It belonged to my great-grandfather who used to work in China. The tiles are made of bamboo on the back and the surface is made of cow bone or some kind of bone in the style of real ivory. The tiles are hand carved as they all have slightly different shapes if you look closely.The wooden box is 5-tiered and all the tiles are complete. International Buyers - Please Note. I do not mark merchandise values below value or mark items as "gifts" - International government regulations prohibit such behavior.