Eriksen M/25
... that although only a single example of the Eriksen M/25 machine gun was built, it saw service in the 1940 Norwegian Campaign?
... that although only a single example of the <b id="mwB-A"><a href="./Eriksen_M/25" id="mwB-E" rel="mw:WikiLink" title="Eriksen M/25">Eriksen M/25</a></b> machine gun was built, it saw service in the 1940 <a class="mw-redirect" href="./Norwegian_Campaign" id="mwB-I" rel="mw:WikiLink" title="Norwegian Campaign">Norwegian Campaign</a>?