There are several price guides available for NA Native American stuff, scince there is quite a market in this material. For midwestern material, I like _Indian Artifacts of the Midwest_ by Lar Hothem, 1992, Collector Books, P.O. Box 3009 Paducah, Kentucky 42002-3009 (to order), $14.95. This book includes a good photo selection of a broad range of artifacts trying at the same time to standardize their names. At the back of the book each piece featured is given a value or a value range. These values seem fair enough. The other books I've seen on this subject seem to be written for the marketplace and I neither like them, nor trust them. I haven't done it, but I expect the above cited publisher may have resources for your other needs. T.Q. Vidal