Stoneware salt glaze jug or vase from West Germany 1930s

Beautiful stoneware ceramic jug or vass with salt glaze. It has floral patterns in purple/brown and heart ribbon pattern in cobalt blue. It was produced in the reinhold merkelbach ironstone manufacture in höhr-grenzhausen, western germany. In the 1930s the old "red technique " was revived by merkelbach's modelers. This involved using a pointed object to carve patterns on the surface of the object. The object is in a good condition. This is a vintage product, there may be signs of use.