Ok so the patina is a photographic issue and the Nagako is very dirty not taken care of properly.The handle hasn't been off since wwII era, it had a gauze wrapping over the mekugi that what so old it was disengrating.The state of polish is poor, and a few issues I know. What I'm wondering about is the Mei? It looks weak in some places and better cut in others?Also did I translate it correctly