Pratt &amp; Whitney Wasp R-1340 AN-1 serial number 41-9097 aircraft engine in the Aviation Museum of Central Finland. This example was used in Noorduyn Norseman OH-NOA.
<a href="//commons.wikimedia.org/wiki/User:MKFI" title="User:MKFI">MKFI</a>
<span class="int-own-work" lang="en">Own work</span>