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<DIV class=plainMail>Check out the following website. It has some very useful information on CPL's used by PRR, N&W, B&O. It also has diagrams showing the various signal aspects and Indications.</DIV>
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<DIV class=plainMail><A href="http://broadway.pennsyrr.com/Rail/Signal/aspects_us_pl.html">http://broadway.pennsyrr.com/Rail/Signal/aspects_us_pl.html</A></DIV>
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<DIV class=plainMail>Gewidebody</DIV></BLOCKQUOTE></td></tr></table><br>