Super nice and colourful poster by the Danish designer and architect, Ib Lunding.
The poster here has the name "Trams of Copenhagen E6", and has the number "6" in the foreground.
The white "6" breaks the lovely, simple and blue background.
The poster can be purchased with or without a frame, available in different varieties and colours.
These varieties and colours are black wood, natural oak, dark oak and magnetic oak frame.