Etching :
Process realized on a metal plate using a chemical (acid) process. The artist using etching is called an aquafortist.
Henry de Waroquier :
(Paris 8 janvier 1881 - 1970) is a French painter, sculptor, and engraver close the the Nabis and the Ecole de Paris. His works belong to many museums including Musée des Beaux Arts de Nantes (France), Nykytaiteen museo Kiasma (Finland), Centre Pompidou - Musée national d'art moderne (France), Museo Nacional de Artes Visuales (Uruguay) or Ohara Museum of Art (Japan).