Borosilicate glass glass sphere.
Its decoration is made with vapors of gold and silver pure 99% for the
interior and colored glass for the rear.
This piece is made by hand using a blowtorch.
It is then annealed in an oven. (slowly returning to temperature)
This sphere is dated and signed:
The Dref E 2020
Comes with a base.
Diameter 59mm. 2.32inch