Depicted thermos container was made by ISOLA company, the very first Czechoslovak bakelite producer, since 1922 in Jablonné nad Orlicí, Eastern Bohemia. In 1920´s Isola was specialised in producing various bakelite parts for low tension electric industry especially for company Telegrafia (mainly telephone and radio cases). In 1930´s they started to produce thermos containers and other kitchen related items. Since 1930´s Isola company was known as a producer of one of finest bakelite in Europe. During WW2 the Isola company was directed by German occupiers (it became part of Reichswerke Hermann Göring AG) and was considerably modernised - new huge line for vacuum glass producing was built in early 1941. Since then Isola started to produce thermos containers for Nazi armies. After WW2 Isola company was nationalised and continued bakelite thermos containers production. Depicted container is post WW2 production, late 1940´s.