Page 239 - Petru Russo | The 100 Days of Decameron by Giovanni Boccaccio

Etching, an age-old practice, uses potent acid to meticulously corrode the
uncovered sections of a metal surface, producing ink-retaining, sunken
designs. (Petru Russo in 13 / 04 / 1986 intaglio printmaking the 100 Days of
Decameron on H. Fleury printing press manufactured in Paris in the 1880s.)