Silver Centenary
...that the Silver Centenary biplane, built in Beverley, Western Australia in 1930, received its airworthiness certificate 77 years after its first flight?
...that the <b id="mwF5A"><a href="./Silver_Centenary" id="mwF5E" rel="mw:WikiLink" title="Silver Centenary">Silver Centenary</a></b> <a href="./Biplane" id="mwF5I" rel="mw:WikiLink" title="Biplane">biplane</a>, built in <a href="./Beverley,_Western_Australia" id="mwF5M" rel="mw:WikiLink" title="Beverley, Western Australia">Beverley, Western Australia</a> in  <a href="./1930" id="mwF5Q" rel="mw:WikiLink" title="1930">1930</a>, received its <a href="./Airworthiness" id="mwF5U" rel="mw:WikiLink" title="Airworthiness">airworthiness</a> certificate 77 years after its first flight?