Dr. Atl (Gerardo Murillo) ( 1875 - 1964 ) was a Mexican Indigenism, Expressionism, and Social Realism painter, known for mural landscape painting. Dr. Atl (Gerardo Murillo) s works have been put up for auction numerous times, with realized prices greatly surpassing estimated prices, varying from 60000 USD for AUTORRETRATO CON PARICUTÍN in 2004 to a remarkable record 1650500 USD for MAÑANA LUMI