Need opinion:

DLV Dagger has all nickel silver fittings, has never been cleaned or polished and has a silver tarnish and patina. It does not have any of the usual markings on the cross guard or scabbard throat. The leather covered grip is in excellent condition, the leather covered scabbard has two small holes on one side at the lower fitting. The blade does not have a makers mark but does have an unusual mark (see photo) and is also in excellent condition with some scabbard running marks.
Thanks