You apply strips of different colour circularly on the glass object. With a metal comb, you create waves (called 'bannerette'). This technique dates back to ancient Egypt, where bottles and vials were decorated in this way.
In the late 20s, the manufacture MVM Cappellin & C used this technique for making vases that had been designed by Carlo Scarpa. In the 50s, Barovier &Toso produced different variations under the name of 'neolitici' and 'graffiti'.
