http://book.klll.cc/ebooks/subject/24625.opds?sort_order=release_date 2025-11-16T22:44:55Z Books about Copperwork Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T22:44:55Z https://book.klll.cc/ebooks/47040.opds Chats on Old Copper and Brass Fred. W. Burgess 2025-11-16T22:44:55Z https://book.klll.cc/ebooks/41851.opds Copper Work: A Text Book for Teachers and Students in the Manual Arts Augustus F. Rose