Gedenktafel für <a href="//commons.wikimedia.org/w/index.php?title=Martin_Joseph_Prandst%C3%A4tter&amp;action=edit&amp;redlink=1" class="new" title="Martin Joseph Prandstätter (page does not exist)">Martin Josef Prandstätter</a> am Wiener Rathaus (Turm)
<a href="//commons.wikimedia.org/wiki/User:GuentherZ" title="User:GuentherZ">GuentherZ</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>