These papers were authored by a very good friend, George Patten, out of Arizona.  He had the second largest ammo collection in the United States. First was Bill Wooden.  George researched Japanese Military Ammunition and this is what he came up with.  We are sure this is very accurate.  If you are an ammo collector or Japanese militaria collector, this would be a great addition to your collection.   If you are purchasing more than one lot from us, please click buy it now and then request an invoice for combined shipping.  We will provide feedback once it is received indicating your satisfaction with the product.