A polished aluminium neck tube by Frans van Nieuwenborg and Martijn Wegman

A polished aluminium neck tube by Frans van Nieuwenborg and Martijn Wegman, designed in 1972, and another aluminium neck tube, in original presentation box and leather bag, etched signature, 15.5cm. diam. (2)

Catalogue notes

The neck tube comes in two models (both versions in this lot), one completely closed and one with a small opening.