The Modell Lyon, as it is usually named, was made by the DFG (Deutsche Fernsprecher Gesellschaft) in the 1980s. It was adopted by the Deutsche Post as the DeFeAp 330.
The Dutch PTT also offered it to their subscribers under the name “Rembrandt”, with that name printed on the brass sign at the front, where it says Lyon on other versions.
It was made to resemble old style telephones, although in the olden days wooden telephones often did not have rotary dials. It is a typical example of a faux antique telephone and sometimes gets mistaken for a real antique.
Electronically it was mostly a Bundespost 7-series telephone (See FeTAp 751 and 791).
Although it is often described as being made of wood, my version and those owned by collectors I talked to are made of a very light kind of MDF laminated with a veneer with woodprint. I have never actually seen one that was made of wood. Usually they are around 2 kg in weight, which is way too light for it being made of real wood.
Several metal and plastic parts were plated with a thin layer of real gold. Often this layer of gold has worn away by polishing, revealing the underlying metal.