Analogrechner MEDA 42TA - Detail
Aritma Prag, Tschechoslowakei, um 1970
<a href="//commons.wikimedia.org/wiki/User:Wuselig" title="User:Wuselig">Wuselig</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>