The year is 1891 and the place is Mars. A pack of steam-propelled airships slogs it out with a sky frigate above a canal city. The small ships display no flags, so their attack is a case of piracy and not a legitimate act of war.
This is a scene from the Victorian science fiction game Space 1889 (link >>> ) by Frank Chadwick. This has been my favorite game since the early 1990s; my buddies and I have experienced scores of adventures in the dilapidated cities and cold skies of the Red Planet.
Click on the picture for a larger version.
Artist: Flavio Bolla at DeviantArt