ringl + pit (Grete Stern [Argentine, born Germany, 1904–1999] and Ellen Auerbach [American, born Germany, 1906–2004]), Pétrole Hahn, 1931, gelatin silver print, The Metropolitan Museum of Art, Ford Motor Company Collection, Gift of Ford Motor Company and John C. Waddell, 1987 (1987.1100.100), © ringl + pit, courtesy Robert Mann Gallery, New York, Image © The Metropolitan Museum of Art, Art Resource, NY