Marcussen & Søn
...that the Danish firm Marcussen & Søn have built over 1000 organs since their foundation in 1806?
...that the <a href="./Denmark" id="mwYA" rel="mw:WikiLink" title="Denmark">Danish</a> firm <b id="mwYQ"><a href="./Marcussen_&amp;_Søn" id="mwYg" rel="mw:WikiLink" title="Marcussen &amp; Søn">Marcussen &amp; Søn</a></b> have built over 1000 <a href="./Pipe_organ" id="mwYw" rel="mw:WikiLink" title="Pipe organ">organs</a> since their foundation in <a href="./1806_in_music" id="mwZA" rel="mw:WikiLink" title="1806 in music">1806</a>?