On spine of blade appears to be Royal cypher with crown and "W" under it (Probably Wilhelm 2). Under that is a "17". Year of make I understand. Under that, still on spine of blade is what appears to the best of my ability to describe to be another crown symbol with an emblem that resembles the PI symbol of math. Now, my greatest point of uncertainty has to do with what appears to be another royal cypher on the handle just above the locking piece for attachment to rifle. It is what appears to be a crown symbol again and the symbol under it this time most closely resembles that of Wilhelm the 1st! Though it is in no way a definite match to that cypher. This confuses me. Why the differences in what appear to be royal cyphers? Please help someone. Manufacturer was Schubert v. Salzer. Tip of the scabbard has a "31" on it.