This pong console is apparently one of the earliest sold in Europe. This is the first time I've seen a game machine have an actual wooden case. Apparently less than 3000 of these were built, many of them were hand made to order. Thus this console can be found with any number of variations (color of buttons, lettering, components, etc.)
There is a much more detailed page at Pong story that goes into all the fine details of this machine.