BrickLink produced this set. It came with brand new LEGO bricks provided by the LEGO Group. The Boxing carries the “60 Years LEGO brick” Logo. BrickLink developed Boxing and Instructions. This is not an official LEGO set. This set was exclusively sold via Bricklink.
There is no official age recommendation for this set. The contest ames for adults. But I’d say it’s a 12+. It always depends on the experience of the individual builder.