Maxberg specimen
... that the Maxberg specimen, one of only 10 Archaeopteryx specimens ever found, has been lost since 1991?
... that the <b id="mwE1U"><a class="mw-redirect" href="./Maxberg_specimen" id="mwE1Y" rel="mw:WikiLink" title="Maxberg specimen">Maxberg specimen</a></b>, one of only 10 <i id="mwE1c"><a href="./Archaeopteryx" id="mwE1g" rel="mw:WikiLink" title="Archaeopteryx">Archaeopteryx</a></i> specimens ever found, has been lost since 1991?