Grave of Michael Winkler (1822–1893), entrepreneur and organizer of the house numbering system in Vienna, and of his wife Gattin Karoline (née Knap; 1830–1906) in the Old Jewish Part of the Vienna Central Cemetery (7/27/39)
<a href="//commons.wikimedia.org/wiki/User:Papergirl" title="User:Papergirl">Papergirl</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>