Archaic Curfews Incite Demonstrations [pinback button with initials spelling ACID]

$75 · Offered by Bolerium Books

San Francisco: A Big Little Shop, [196-]. 1.25 inch diameter pin, very good condition; address of the store (a head shop on Polk St.) partly visible over the curl. More

Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.