The former artistic director of the Venetian glassworks Aureliano Toso, he combined traditional Muranese techniques with daring asymmetric shapes.
This vase (Model 5389) was part of his so-called Oriente range – the result of many experiments in which Martens strived to fuse the borders between painting and blown glass.
The technique (exhibited for the first time at the 1952 Biennale) was achieved by rolling a clear cylinder of glass over colourful, flat patterns comprising ground glass and aventurine, glass canes and latticino glass squares.
Martens’ Oriente vase comes for sale at Quittenbaum in Munich on October 10. This 9in (23cm) high funnel-shaped vase (Model 3153) is estimated at €5000-6000.