crow's nests
...that in addition to their use on early sailing ships, early trains had "crow's nests" as well?
...that in addition to their use on early <a href="./Sailing" id="mwBsA" rel="mw:WikiLink" title="Sailing">sailing</a> ships, early <a href="./Train" id="mwBsE" rel="mw:WikiLink" title="Train">trains</a> had "<b id="mwBsI"><a href="./Crow's_nest" id="mwBsM" rel="mw:WikiLink" title="Crow's nest">crow's nests</a></b>" as well?