 This photo has been scanned with a <b>Reflecta <i>DigitDia 6000</i></b> <a href="https://en.wikipedia.org/wiki/en:Image_scanner" class="extiw" title="w:en:Image scanner"><b>image scanner</b></a>.
<a href="//commons.wikimedia.org/wiki/User:Karl_Oppolzer" title="User:Karl Oppolzer">Karl Oppolzer</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>