This is an Iittala Marski glass from 1959 to 1979. Made in Finland. Diameter is about 6cm, height is about 6.5cm. It features distinctive bumps, resembling bamboo joints or a UFO. The brand logo sticker has some damage. I think it would be suitable for whiskey, brandy, and also Japanese sake! Marski stacking, Nordic vintage, retro, antique.