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<DIV>Dave,</DIV>
<DIV> </DIV>
<DIV>Checking the GE Lamp Products Catalog, the only thing I can find close to
what you describe is a # 18S11/1SC. This is a single contact bayonet
base (<EM>SC</EM>), 18 watts and rated at 10 volts. It's listed usage is
"Railway Signal Light - Clear"</DIV>
<DIV> </DIV>
<DIV>Hope this helps.</DIV>
<DIV> </DIV>
<DIV>Tom Bosquet</DIV></FONT></BODY></HTML>