Cleaned Nakago or artifact of photography ?

[Jon]

I’ve been looking around at a few blades and noticed a site in Australia selling a number of katana…but from the pictures a lot of their stock looks like they have had cleaned Nakago….now I’m not sure if this is just an artifact of photography ( not understanding one of of a camera from another) or if a lot of these blades have cleaned Nakago..answers on a postcard please…

[Brian]

Patina is fine. It's the way they photograph them