Duo of modernist ceramic vases and brutalist 1960-70 by ES-Keramik Germany

Beautiful pair of vases with modernist and brutalistic design dating from the years 1960-70. Manufactured by ES-Keramik, a manufacturer renowned for its quality art ceramics. Brown and grey fat lava hue typical of those years ago. The first has a square base of 10cm x 10cm and a height of 29cm; its design is extremely modernistic. There are no marks on this model but I can guarantee that it is indeed an ES-Keramik since I had another similar model without marking either but which possessed its original sticker-photo on request). The second is usually called rock vase (because of its rock shape); its height is 19cm and its largest dimensions in width and depth are 10cm x 10cm. This Rock vase is scored 674-19 (674 for the model and 19 for the height). Very decorative set with matte Brown enamel covered with a brighter white-grey fat lava enamel. No cracks or flaws.