What silver colored metal or alloy are these Etched Asian Lamps made from ?

[the-coultergeist]

I have a pair of lamps that are definitely hand etched and painted because they are not exactly alike. 

The top and bottom are made of brass and the center section is a silver color. 

Unfortunately, my photos look like they are a yellowed or golden color, but it is definitely silver and the etching is deep.  There is no copper or brassy color showing in the deep etched areas.

There is no tarnish on it and it is not magnetic.

Any help will be appreciated.

thank you

[the-coultergeist]

The top and bottom are made of brass and the center section is a silver color. 

Unfortunately, my photos look like they are a yellowed or golden color, but it is definitely silver and the etching is deep.  There is no copper or brassy color showing in the deep etched areas.

There is no tarnish on it and it is not magnetic.

Any help will be appreciated.

thank you