Bowl made of colorless glass with a cobalt blue underlay, wall with melted, surrounding blue glass thread, warmed bowl edge.Base with dislocated tear and engraved signature of the technical school. Bowl is in undamaged condition.Zwiesel Glass Technical School, form number 8. Made in 1995, designed by Hans Wudy or Bernhard Schagemann. Height: approx. 11.0 cm, diameter: approx. 23.8 cm.