Turning slowly, outlined against the clouds over Rotterdam, a modern three blade windmill moves to left and leads the eye to the background, where a shadowy precise shape of a factory with several smokestacks stands in center frame. The leftmost stack of the factory belches smoke into clouds overhead.

Turning slowly, outlined against the clouds over Rotterdam, a modern three blade windmill moves to left and leads the eye to the background, where a shadowy precise shape of a factory with several smokestacks stands in center frame. The leftmost stack of the factory belches smoke into clouds overhead.