Camberley Obelisk
... that the 18th-century Camberley Obelisk may have been built by John Norris to communicate by heliograph with Sir Francis Dashwood at West Wycombe church, about 20 miles (32 km) away?
... that the 18th-century <b id="mwDCo"><a href="./Camberley_Obelisk" id="mwDCs" rel="mw:WikiLink" title="Camberley Obelisk">Camberley Obelisk</a></b> <i id="mwDCw">(pictured)</i> may have been built by <a href="./John_Norris_(1721–1786)" id="mwDC0" rel="mw:WikiLink" title="John Norris (1721–1786)">John Norris</a> to communicate by <a href="./Heliograph" id="mwDC4" rel="mw:WikiLink" title="Heliograph">heliograph</a> with Sir <a class="mw-redirect" href="./Francis_Dashwood,_15th_Baron_le_Despencer" id="mwDC8" rel="mw:WikiLink" title="Francis Dashwood, 15th Baron le Despencer">Francis Dashwood</a> at <a href="./St_Lawrence's_Church,_West_Wycombe" id="mwDDA" rel="mw:WikiLink" title="St Lawrence's Church, West Wycombe">West Wycombe church</a>, about <span about="#mwt35" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"20"},"2":{"wt":"mi"}},"i":0}}]}' id="mwDDE" typeof="mw:Transclusion">20 miles (32</span><span about="#mwt35" typeof="mw:Entity"> </span><span about="#mwt35">km)</span> away?