Bone artifacts are rare as they decompose pretty quick. When found they often show incised lines or decorations on them. Larson found one in very good shape from an area where people lived off the buffalo. Game stones were made by many ancient cultures and most found are made out of stone. Some end up being drilled all the way through and worn and are called gorgets. It can get tricky on I.D with out a written history.They gambled and traded with items like these because there was no currency. It is Art and craftsmanship in the stone age.
Items like this are similar to say CW/US belt buckle or in coins a rare copper or a key date Indian head a nice reale or a good gold ring out of a tot lot.
The value of one in that condition could possibly buy a couple metal detectors
Neo gave a good link in that link was a better explanation of items like this in that particular culture. I do not know why everyone did not try to help explain this so you would know what is on your banner bar. There have been hundreds of artifact items that are banner worthy roll by unnoticed. I guess Jeff thought it would be nice to have an ancient artifact rolling by. Here is some from the link:
Young women sat on the ice wrapped in buffalo robes and played gambling games. A common one was played by two teams with two to eight players each. As in many such amusements, the object was to slide a game piece to a goal. In this case, a bone thrower made from a buffalo vertebra was used to propel the gaming piece towards the goal, which was a piece of wood about three inches long, notched at each end and painted red. The game piece itself was either a flat, circular river pebble or a small, square piece of buffalo vertebra. Such bone pieces were usually decorated with two carved lines stretching from corner to corner and crossing in the center.
Hope this helps
Nice find Larson. Congratulations !!
TnMtns
Dd60
But I guess thats because I don't do gardening or grow tomato's 
