I apologize for the poor quality of this mage -- I photographed it from a smallish reproduction in an advertisement printed on newsprint. I have not yet run across the original artwork, though it is possible it's in my files somewhere.
This is from one of two times that my artwork was used to promote a small science fiction event held in 1980 at the University of Massachusetts in Amherst, MA. At one of these shows, I got to meet Joan Vinge, one of my favorite science fiction authors.
In addition to being used in advertisements and posters for the event, this image was also printed on t-shirts. I think I may still have one of them (a little worse for the wear). -- PL