<i>Vartiovene 55</i>, <i>Patrol Boat 55</i>, in Mustalahti Harbour, Tampere, Finland. Formerly known as <i>Röyttä</i>, the R class patrol boat served Finnish Navy from 1959 to the late 1990s. Nowadays it's in private use.
<a href="//commons.wikimedia.org/wiki/User:Methem" title="User:Methem">Methem</a> (Mikko J. Putkonen)
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>