Source: https://www.nytimes.com/2012/02/06/arts/design/steven-leiber-dealer-in-artists-ephemera-dies-at-54.html?mabReward=relbias:r,%7B%221%22:%22RI:11%22%7D&_r=0&adxnnl=1&module=Search&adxnnlx=1418914134-chYYfX9X+7jRco7T1NzoqA