Amat-spit-bite amat amat amat bite intaglio-printing

spit bite process

copper-plate-oxit aquatint cleaning-copper-plates plate etching-plate print-workshop-amat-plates

copper plates

artist's-and-printer-working

Murtra workshop

spit-bite-Amat

Frederic Amat

   

sing-prints-amat-altaio

Frederic Amat and Vicenç Altaió sing the prints