Kanji Identification

[da_mich*]

Hello,

does anybody here know this kanji art? I can´t read it. The ura side stamp is not good too. I think it´s anything with Shirogami. Thanks

 

[Auskid]

xx永蔵作 could not read the first 2 words clearly the Japanese pronunciation is unknown. the steel type was not very clear as half of the kanji was erased it looks like xxx white steel