Juan Castells Marti, Uruguayan, born 1905, woodblock print on paper color woodblock print on paper, Don Quixote and the Windmills, illustration from the series Don Quixote. Signed in pencil lower right. Framed. Juan Castells Marti was a 20th century Uruguayan artist, sculptor, wood carver and woodcut artist. He was born into a family of noted artists. From 1940 Marti was a frequent exhibitor at Spanish expositions and international exhibitions. In 1950, in fact, Castells Marti was commissioned by Pope Pius XII to create his unique wood carvings. Graphic Art Prints and Collectibles.