<p>Russian 6 inch 200 pood siege gun model 1904.   This particular gun was manufactured in Perm in 1910.
displayed in front of Coastal Artillery Museum in Suomenlinna fortress, Helsinki.
Photo taken on June 10, 2006.
</p>
Source: Photo by me, <a href="//commons.wikimedia.org/w/index.php?title=User:Balcer&amp;action=edit&amp;redlink=1" class="new" title="User:Balcer (page does not exist)">User:Balcer</a>.
<a href="//commons.wikimedia.org/wiki/User:Balcer~commonswiki" title="User:Balcer~commonswiki">Balcer~commonswiki</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>