7.65 mm <a href="https://en.wikipedia.org/wiki/Walther_arms" class="extiw" title="en:Walther arms">Walther</a> 4 pistol. Photographed in the "Winter War - 70 years" exhibition in the Military Museum of Finland.
<a href="//commons.wikimedia.org/wiki/User:MKFI" title="User:MKFI">MKFI</a>
2010-06-19
<span class="int-own-work" lang="en">Own work</span>