Jerry Garcia’s iconic “Wolf” guitar will be auctioned off at the Brooklyn Bowl on March 14 to benefit the Southern Poverty Law Center, an organization that combats hate groups and racism.

Ultimate Classic Rock reports that the guitar’s current owner noted that “the time is right for Wolf to do some good. My wife and I have long supported the efforts of the SPLC and if ever we needed the SPLC, we sure do need them now.”

The Doug Irwin-designed guitar made its debut in the Jerry Garcia repertoire on September 5, 1973 and most famously appears on the cover of Garcia’s 1974 record Compliments.

The Southern Poverty Law Center, formed in 1971 and designed to ward off the remains of the Jim Crow segregation, currently aims to eliminate and combat hate groups, preaching diversity and tolerance to a wide variety of groups.

All proceeds from the guitar’s sale will go towards the organization.