Talk:ALCO S-1 and S-3
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Again, no idea which Union Railroad to disambig to. --SPUI (talk) 08:57, 7 May 2005 (UTC)
There were some differences between the S-1 and S-3 carbodies. The S-3 had a more welded carbody and less riveted construction. Also rubber moldings were installed on all the windows. See page 310 The American Locomotive Company A Centennial Remembrance by Richard Steinbrenner. --SSW9389 19:27, 4 October 2007 (UTC)

