<p>Robert C. Williams Paper Museum
</p>
Chines two-sided wood block for printing wall paper (see <a href="//commons.wikimedia.org/wiki/File:Paper_Museum_in_Atlanta_054.JPG" title="File:Paper Museum in Atlanta 054.JPG">File:Paper Museum in Atlanta 054.JPG</a> for the other side)
<a href="//commons.wikimedia.org/wiki/User:Piotrus" title="User:Piotrus">User:Piotrus</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>