Classic head shop poster which makes an appearance in the 1970 documentary Sean by Ralph Arlyck, about a 4-and-a-half-year-old Haight-Ashbury resident. You can watch it on YouTube via a search for “Sean 1970” and you should, even if you’ve seen it before, because it’s one of the best things ever. The 2004 follow up, Following Sean, is also a good one.