IN AN UNASSUMING, OFF-WHITE, TWO-STORY HOUSE IN SAN Francisco’s Mission District, built in the Italianate style that predominates in the neighborhood, you’ll find the Institute of Illegal Images, aka the Blotter Barn. It houses an extensive personal collection of LSD art, called “blotter paper,” lovingly curated by Mark McCloud, a wizened, affable remnant of the city’s counterculture. McCloud came to California from Argentina as an adolescent, attended one of Ken Kesey’s early Acid Test “happenings” in the 1960s, puttered around the globe, and eventually put down stakes in the Mission in the mid-’70s, opening a home gallery that serves as an unbound history of the War on Drugs.
Each perforated, dyed tab of paper tells a story. One pulpy print pays tribute to the Swiss chemist Albert Hofmann, the “Father…
