First editions of the four collected works of Strontium Dog stories, the British graphic novels that originated in the late 1970s. The series takes place in a dystopian nuclear future and stars Johnny Alpha, a mutant bounty hunter. The title takes its name from strontium-90, radiation from which has caused a large number of mutant births. These volumes gather together the various stories, and were published in 2006, 2007, 2008 and 2008 respectively. All are first printings with the full number line to 1. Published by 2000AD, all softback. All in very good condition with mild wear externally. All clean inside with no writing.