I am not familiar with Nichols engines but I do have a 1905 Huber 16 steamer.  I use a couple of other sites for my steam information and I'm sure that the folks on those sites can help you.  Try the steam list at <!-- w --><a class="postlink" href="http://www.ATIS.net">www.ATIS.net</a><!-- w --> and also try the Steamers section on Harry's old engines  <!-- m --><a class="postlink" href="http://www.smokstak.com/forum/forumdisplay.php?f=7">http://www.smokstak.com/forum/forumdisplay.php?f=7</a><!-- m -->