The front of the sheet is an animation I created sometime in 1991, using my Hydrology book. I then replicated the drawings in a sort of a “circular” pattern, which is incomplete in this case (but I have other copies and the original animation). In the back of the sheet a pre-internet transcription of the lyrics for Thru and thru by Keith Richards (the transcription was surely made after 1993, since I did not know this song earlier).
More or less in the same period I created the “revenge” animation.