A blue and yellow button with the symbol for the Women's Liberation movement, the Venus symbol with a clenched fist inside of it. The attached card... Show moreA blue and yellow button with the symbol for the Women's Liberation movement, the Venus symbol with a clenched fist inside of it. The attached card notes that this was bought from the Sisterhood Bookstore in Los Angeles around 1975 and it was given by Vivian Mayer. Show less