I had this piece in my files under the heading of Slaves to the Moon but I didn't want to post it until I had a date. Unless any one knows different I'm going to go with this publication as the first to use it and label it 1978. It's an absolute gem, is it not.
Below is the back cover and features quite a different looking space chap which may not be by Elson. Again if anyone knows a bit more I would love to be able to confirm the artist in an update