Potomac, Fredericksburg and Piedmont Railroad
... that the Potomac, Fredericksburg and Piedmont Railroad cost less than US$1 million to build?
... that the <b id="mwAQw"><a href="./Potomac,_Fredericksburg_and_Piedmont_Railroad" id="mwAQ0" rel="mw:WikiLink" title="Potomac, Fredericksburg and Piedmont Railroad">Potomac, Fredericksburg and Piedmont Railroad</a></b> cost less than US$1<span id="mwAQ4" typeof="mw:Entity"> </span>million to build?