<a href="https://en.wikipedia.org/wiki/Paper_marbling" class="extiw" title="w:Paper marbling">Marbled paper</a> on the back cover of a book bound in Germany around 1880. The yellow stripes are golden in the original.
Scanned by <a href="//commons.wikimedia.org/wiki/User:Aristeas" title="User:Aristeas">Aristeas</a> (Roman Eisele) from a book in his possession. Maker of marbled paper unknown.
1880
<span class="int-own-work" lang="en">Own work</span>