Charles Buckles Falls
... that Charles Buckles Falls' signature – an f within a black, square box – became so well recognized that he was eventually able to drop the f entirely?
... that <b id="mwBK0"><a href="./Charles_Buckles_Falls" id="mwBK4" rel="mw:WikiLink" title="Charles Buckles Falls">Charles Buckles Falls</a></b><span about="#mwt27" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`","href":"./Template:`"},"params":{},"i":0}}]}' id="mwBK8" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span></span> signature<span about="#mwt28" data-mw='{"parts":[{"template":{"target":{"wt":"snd","href":"./Template:Snd"},"params":{},"i":0}}]}' id="mwBLA" typeof="mw:Transclusion mw:Entity"> </span><span about="#mwt28" typeof="mw:Entity">–</span><span about="#mwt28" typeof="mw:Entity"> </span>an <i id="mwBLE">f</i> within a black, square box<span about="#mwt29" data-mw='{"parts":[{"template":{"target":{"wt":"snd","href":"./Template:Snd"},"params":{},"i":0}}]}' id="mwBLI" typeof="mw:Transclusion mw:Entity"> </span><span about="#mwt29" typeof="mw:Entity">–</span><span about="#mwt29" typeof="mw:Entity"> </span>became so well recognized that he was eventually able to drop the <i id="mwBLM">f</i> entirely?