You could thing that pot is a very handy piece of cookware. It is made of resistant cast iron. You can also cook tasty dishes in the oven, thanks to the parts being oven safe.
From Nordic Nest
STAUB Vintage La Coquette casserole dish round 0.5 L Black
Berondi
Staub - Cocotte Vintage Line, Ø 12 cm / 4 3/4'', 40501-020 / 11741223