knife collecting
... that collecting antique Bowie knives is one of the higher-end forms of knife collecting with rare models selling for more than US$200,000?
... that collecting antique <a href="./Bowie_knife" id="mwCz8" rel="mw:WikiLink" title="Bowie knife">Bowie knives</a> is one of the higher-end forms of <b id="mwC0A"><a href="./Knife_collecting" id="mwC0E" rel="mw:WikiLink" title="Knife collecting">knife collecting</a></b> with rare models selling for more than US$200,000?