ETCHING INVOLVES USING STRONG ACID TO CARVE DESIGNS INTO THE
UNPROTECTED PARTS OF A METAL SURFACE, CREATING GROOVES THAT
HOLD INK. (PETRU RUSS0 IN 13 / 04 / 1986 INTAGLIO PRINTMAKING
THE 100 DAYS OF DECAMERON ON H. FLEURY PRINTING PRESS
MANUFACTURED IN PARIS IN THE 1880S.)