The significance of this telephone lies in the design of the case rather than any technological innovation, although the push button dialling, and the R button for redial, are early, and innovative for the time. The casing is made entirely of timber (Rosewood), with elegant metal call buttons set off centre to the right of the telephone face. This asymmetrical treatment of the elements may have been a practical consideration to accommodate other internal components - such as the telephones bell / buzzer - however the result with push buttons justified down the right side, with numerals set in counter placement to the left of centre - sets these features in balance.
The use of a traditional material (in this case Rosewood) to realise a modern form may be viewed as a nod to the fine practice of Scandinavian design which has utilised this material for centuries and particularly well in the mid twentieth century in the manufacture of modern furniture. It may also have been a conscious decision by the manufacturer to produce a technological device in a material that would sit well with modern furnished interiors incorporating similar materials.
The Gfeller Trub achieved near cult status in the late 1980s, especially in Britain. When the company ceased manufacture, and disappeared, reproductions began to be made, and are still available. This example is from the original 1970s production run by Gfeller.
Campbell Bickerstaff, 2013