The Game of Peter Rabbit
... that Beatrix Potter registered The Game of Peter Rabbit at Stationers' Hall before the game board or the rules had been perfected?
... that <a href="./Beatrix_Potter" id="mwGuw" rel="mw:WikiLink" title="Beatrix Potter">Beatrix Potter</a> registered <i id="mwGu0"><b id="mwGu4"><a class="new" data-mw-i18n='{"title":{"lang":"x-page","key":"red-link-title","params":["The Game of Peter Rabbit"]}}' href="./The_Game_of_Peter_Rabbit?action=edit&amp;redlink=1" id="mwGu8" rel="mw:WikiLink" title="The Game of Peter Rabbit" typeof="mw:LocalizedAttrs">The Game of Peter Rabbit</a></b></i> at <a class="mw-redirect" href="./Stationers'_Hall" id="mwGvA" rel="mw:WikiLink" title="Stationers' Hall">Stationers' Hall</a> before the game board or the rules had been perfected?