This collection comprises rare maps that were acquired to fill in gaps in geographic coverage in the map collections donated to Phillips Academy since 2011, most of which focus on the Americas and Europe.<br><br>These include the: <a href="https://www.digitalcommonwealth.org/collections/commonwealth:j3860802m">Sydney R. Knafel</a>, <a href="https://www.digitalcommonwealth.org/collections/commonwealth:6395x7446">Robert E. Diefenbach</a>, <a href="https://www.digitalcommonwealth.org/collections/commonwealth:6d570c828">Ralph Finos</a>, and <a href="https://www.digitalcommonwealth.org/collections/commonwealth:37723b82n">Pechter Family</a> Map Collections.