Moira McTague on Twitter: "Printing this copper plate this afternoon for #printdayinmay Everyday's a print day https://t.co/NbzN5xmG7K" / Twitter
Restoring USGS copper plates - continuum | University of Minnesota Libraries
Central School Project - COPPER PLATE ETCHING WORKSHOP IS FULL AND WE HAVE STARTED A WAIT LIST FOR A 2nd CLASS! We can one with enough interest, no problemo! Please let us
Printed British Pottery & Porcelain | Comparing the processes