This is the full quartet, Red Green Blue and Martians. All fine in fine dustjackets in mylar protection. They are all 1st printings 1992, 1993, 1996, and 1999. Red & Blue Mars & The Martians are all signed and inscribed to me and dated Glasgow 2005. Green Mars came from Andy at Cold Tonnage and is simply signed by the author on the title page. Green Mars has a price clipped dustjacket and a mild score along the bottom of part of the text block (see photos). This copy also has the laid in advert for the book plus a postcard of the Challenger postcard addressed to Andy with 16 full lines of text from Stan and signed by him. All other jackets are not price clipped. Text blocks are all clean and tight essentially unread with very mild tanning to the Blue Mars text block, with sharp square boards and clean shiny jackets. A beautiful set of "A Mighty Trilogy.The Ultimate in Future History.One Writer Whose Work Will Set the Standard for Science Fiction in the Future" This listing is for 4 books and postage may need recalculated for certain destinations.