‘chevrons’ tumblers with a black glass decor, made when glass was mouth-blown and hot.

see recent glass work by paris-based designer laurence brabant. shape and decor create an optical illusion.

optical illusion glasses by laurence brabant ‘chevrons’

optical illusion glasses by laurence brabant ‘decales’ for cristallerie-verrerie la roche tumblers in three different sizes

optical illusion glasses by laurence brabant ‘decales’ for cristallerie-verrerie la roche

optical illusion glasses by laurence brabant ‘rives’