1960’s Ruscha West German drip glaze vase

Charming mid-century West German lava glaze vase/jug. Vibrant red colour dripping into a mottled biscuit coloured body, with a deep blue interior. Approximately 18cm high, and 13cm across at widest point. In gorgeous condition. There is a form and size mark on the base, typical to vintage West German pottery. We cannot decipher the numbers, but we believe the manufacturer to be Ruscha.