The first ring marks 25cl, the second 50cl, like a half-liter bottle and the last ring indicate the 75cl, ie the content of a common bottle of wine.
The rings that mark the body of the carafe TAKE, and that at first glance may seem like mere decoration, are actually measure of the liquid content and at the same time help to keep a firm grip.
The result of the principle: decoration = function.
The first ring marks 25cl, the second 50cl, like a half-liter bottle and the last ring indicate the 75cl, ie the content of a common bottle of wine.