Postby Aguest » Sun Aug 20, 2017 6:23 pm
The black color on the Cigarette Case is not tarnish, it is another layer of metals known as "Niello."
Here is the definition of Niello:
a black compound of sulfur with silver, lead, or copper, used for filling in engraved designs in silver or other metals.
I cannot recall seeing another Austro-Hungarian silver object with such extensive and very good Niello design, very nice cigarette case.