Verner Overgaard had already worked out the mechanics of a new type of a built-in mixer tap hiding all parts behind a wallplate, leaving only handles and spout exposed. Taking this principle Jacobsen started sketching and designed one simple round knob with a small peg. The monoknob enabled single handed use. The prototype VOLA 111 spurred the creation of a comprehensive program of wall- and top mounted fixtures for both the kitchen and bathroom. Following Jacobsen’s death in 1971, his basic vocabulary of circular elements on a simple grid of measurements allowed VOLA to keep developing new designs until today. In 1968 when VOLA HV1 taps were introduced to the consumers market, the series offered eight expressive colors. Seems kinda cool now, but what a novelty it was in the seventies! Colorful taps were spot on for the poppy trends of the seventies.