1.25" button has small inscription next to the portrait "©/PM/89." In addition, the rim reads "Peter Max/Access Gallery/NYC/Forty Gorbys/Moscow Pop." As the Max official website bio states: "In 1989, For The 20th Anniversary Of Woodstock, Max Was Asked To Create The World's Largest Rock-n-Roll Stage For The Moscow Peace Festival." Soon after the festival, in October 1989, Max unveiled his 40 Gorbys. This was a colorful homage to Mikhail Gorbachev. A few weeks later, communism fell in Eastern Europe and Max was selected to receive a 7,000 pound section of the Berlin Wall, which eventually was installed in the aircraft carrier U.S.S. Intrepid Museum. Using a hammer and chisel, Max carved a dove from within the stone and placed in on top of the wall to set it free. NM displaying Mint.