Chappel Viaduct
... that newly minted coins placed inside a pier of Chappel Viaduct went missing within hours, and a bricklayer who proffered a new half-sovereign in a pub was suspected?
... that newly minted coins placed inside a <a href="./Pier_(architecture)" id="mwBPQ" rel="mw:WikiLink" title="Pier (architecture)">pier</a> of <b id="mwBPU"><a href="./Chappel_Viaduct" id="mwBPY" rel="mw:WikiLink" title="Chappel Viaduct">Chappel Viaduct</a></b> <i id="mwBPc">(pictured)</i> went missing within hours, and a bricklayer who proffered a new half-sovereign in a pub was suspected?