Desirable original 1.75″-diameter black-and-white pinback button from the March on Washington on August 28, 1963, which was highlighted by Martin Luther King, Jr.'s enduring 'I Have a Dream' speech delivered from the steps of the Lincoln Memorial. The button, which reads "Emancipation March on Washington, August 28, 1963," features its union mark on the edge and retains the original black backing. In fine condition.