Karelia (Karjala) was a province of Finland, that was divided between Finland and Russia after the winter war in 1940. The hue of the brown hand painted stripes vary because of melting of the colors. This makes each item unique in style.
A mug is a larger type of cup typically used for drinking hot beverages, such as coffee, hot chocolate, soup, or tea. A mug is a less formal type of drinkware, and is not usually used in a formal table setting.