mail chute
... that the first mail chute was installed in the Elwood Building in Rochester, New York in 1884?
... that the first <b id="mwBtE"><a href="./Mail_chute" id="mwBtI" rel="mw:WikiLink" title="Mail chute">mail chute</a></b> was installed in the Elwood Building in <a href="./Rochester,_New_York" id="mwBtM" rel="mw:WikiLink" title="Rochester, New York">Rochester, New York</a> in 1884?