Shop Montblanc Tortoiseshell Square-frame Glasses In Brown from 800+ stores, starting at $323. tortoiseshell-effect square-frame glasses from Montblanc featuring Havana brown, acetate, tortoiseshell effect, clear lenses, square frame, logo print at the arm, straight arms and curved tips. These glasses come with a protective case.. All glasses from FARFETCH are sold as non-prescription frames..
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