Open stations on cut-and-cover underground routes<br>Stand-alone tunnel portals that fit flush to the edge of the icon; for use in congested areas of a Diagram.
derivative work: -- <a href="//commons.wikimedia.org/wiki/User:Tuvalkin" title="User:Tuvalkin">Tuválkin</a> <a href="//commons.wikimedia.org/wiki/User_talk:Tuvalkin" title="User talk:Tuvalkin">✉</a>
2011-11-26
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