benefit
- https://www.dead.net/archives/1966/artwork/marijuana-prohibition-benefit
- https://www.dead.net/archives/1966/clippings/article-jazz-club-benefit
- https://www.dead.net/archives/1966/photos/1966-peace-benefit-poster
- https://www.dead.net/archives/1966/artwork/grateful-dead
- https://www.dead.net/archives/1967/artwork/haight-ashbury-legal-organization-halo-benefit-poster
- https://www.dead.net/archives/1967/artwork/winterland-arena-poster-marijuana-defense-benefit
