Mugs, tankards in Alsace sandstone

These two very pretty beer mugs can also make perfect mugs for morning coffee. They are made of alsace sandstone as indicated by the hollow stamp below. They date from the 70s or 80s (perhaps before, already found in flea markets at the time apparently). However, they have a very current design, very modern lines: a simple shape, without frills, but very original (a little tightened when opening) and a nice distribution of colors including this very beautiful cobalt blue typical of sandstone objects. 'alsace, again in simplicity, just 3 bands which surround the base. They are in very good condition, a very small chip under the base of one and for the other, a small original defect (during turning or cooking): a slight crack at the junction of the handle, but which does not call into question the solidity of the cup. They measure 11 cm in height, 9 cm in diameter and approximately 14.5 cm in width (including handle).