LSE4330790 Cover of the manual ???he fun calculation: the table of Pythagoras??????by Trim, illustrated by Bertall (Charles d\'Arnoux de Limoges Saint Saens, 1820-1882), Hachette, Paris, second half of the 19th century. Leonard de Selva collection. by Bertall, Charles Albert d\'Arnoux (1820-82); Private Collection; (add.info.: Cover of the manual ???he fun calculation: the table of Pythagoras??????by Trim, illustrated by Bertall (Charles d\'Arnoux de Limoges Saint Saens, 1820-1882), Hachette, Paris, second half of the 19th century. Leonard de Selva collection.); Photo by Leonard de Selva.