Dave King, who designed the iconic symbol that served as the logo for the English anarchist punk collective Crass, has died. The band’s co-founder Steve Ignorant revealed the news on social media. King’s longtime publisher, Colpa Press, confirmed to KQED that King died at home in San Francisco following an extended battle with cancer. He was 71.

After Crass got started in the late 1970s, Penny Rimbaud approached King to design a symbol to appear on the cover of his pamphlet Christ’s Reality Asylum and Les Pommes de Printemps. Dave King designed a circular piece that seemed to feature a Christian cross, a snake, the Union Jack, and a swastika. The symbol came to represent Crass. King has said the symbol was inspired by Japanese family crests and says it was created as “a reflection of Pen’s anger at what he felt were these destructive aspects of Christianity.”

“I still see the symbol today in California, on a jacket or a tattoo,” King said in George Berger’s book The Story of Crass. “I’m tempted to go up to them and say ‘do you know that I designed that?’ It’d be like, ‘piss off granddad!’ They wouldn’t believe me anyway!”

A book collecting King’s work titled David King Stencils: Past, Present and Crass! is out November 13 via Gingko Press.