An oval button in white with 'Welcome to the Revolution' in green font from Sisterhood Bookstore in Los Angeles circa 1975. The attached card notes... Show moreAn oval button in white with 'Welcome to the Revolution' in green font from Sisterhood Bookstore in Los Angeles circa 1975. The attached card notes that the button was given by Vivian Mayer and used for revolutionary feminism and anarchist feminism. Show less