I haven't seen much information about the grades and various finishes of the walnut on Oberndorf Mauser sporters. I wonder if you could special order higher grades of wood. (You could with Mannlicher-Schoenauer.)
For instance, both these Mausers (see photo below) are in excellent condition, with near 100% blue and no indication of having ever been refinished in any way. Both are from the mid-1920s, yet the wood finish is different. The finish on the Model M is more like a varnish finish, something like (but not as extreme) as the "piano finish" on older Sakos. The finish on the Model S is more of a traditional oil finish. Both give every indication of being original factory finishes. I have only one Mauser catalog, the 1964 Stoeger reprint of a 1920s catalog, and all it says is that "the stock is of best quality well-seasoned walnut." No other information regarding the source of walnut, available grades of wood, choice of finishes, etc. Does anyone know a source for this information? I don't see anything about it in the Speed books either, but I may be missing it.