two-room schools
... that the US government once mailed rural school districts scale models from which carpenters could construct actual two-room schools?
... that the US government once mailed rural school districts scale models from which carpenters could construct actual <b id="mwBhw"><a href="./Two-room_school" id="mwBh0" rel="mw:WikiLink" title="Two-room school">two-room schools</a></b>?