The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
The Museum für Kunst und Gewerbe Hamburg has published fair use recommendations when using images in the public domain. They are based on the Europeana Public Domain Usage Guidelines, but there is no legal liability to comply to them. We recommend the following:
When you use a public domain work please credit the author or creator.
Please also credit the Museum für Kunst und Gewerbe Hamburg as the provider of the digital reproduction.
When you use or modify a public domain work you should not attribute the changes to the creator or the provider of the work.
You can link to the object as a source, otherwise we recommend the following citation:
Artist/creator, title, date, Museum für Kunst und Gewerbe Hamburg (public domain)