In blown multi-layer glass worked hot...
With a void that can be seen when the object is turned over...
And applied in the hollow a silver leaf...
The color is astonishingly deep black...
Which makes one think of ceramic...
It is simple a bit like Jouve...
In good condition, with a few scratches due to use...
Two chips on the inner rim below...
Not serious...
Which I could and would have ground...
From the 1940s/50s...
Weight... 1 kilo 193 gr