Prix de réserve non-atteint No Image Lot 127 Ralph Gibson (born 1939); Untitled (Diptych); 127Ralph Gibson (born 1939); Untitled (Diptych); Bonhams RALPH GIBSON (BORN 1939) Untitled (Diptych) , 1997 Diptych comprising one chromogenic print and one gelatin silver print, dated 1991 and 1986 res... Add to watchlist Chronométrée