A benefit-dance poster in the dense, Art Nouveau-influenced style typical of 1967 San Francisco happenings, for an event at California Hall on Polk Street, a hall that hosted many of the era's benefit dances and be-ins. Performer and sponsor names worked into the wing-like lettering are difficult to fully resolve from the surviving copy; further research recommended before cataloging performer details or a firm date.

Sources: Wikipedia. "California Hall (San Francisco, California)." https://en.wikipedia.org/wiki/California_Hall_(San_Francisco,_California)

Note: confirms California Hall (625 Polk Street) as an active countercultural benefit-dance venue in 1967, consistent with this poster, but no independent source specifically documenting a "Group Sex Committee" benefit was found — the description's existing caveat about uncertain performer/date details stands.

Exhibitions: 100