PH Coll 867.16
<ul><li>Subjects (LCTGM): Utility poles--Washington (State)--Seattle; Street lights--Washington (State)--Seattle</li>
<li>Subjects (LCSH): Merchants National Bank (Seattle, Wash.); Pioneer Building (Seattle, Wash.); First Avenue (Seattle, Wash.); Yesler Way (Seattle, Wash.); Central business districts--Washington (State)--Seattle</li></ul><hr><p>Compare <a href="//commons.wikimedia.org/wiki/File:Pioneer_Square,_March_14,_1899_(SEATTLE_3047).jpg" title="File:Pioneer Square, March 14, 1899 (SEATTLE 3047).jpg">File:Pioneer Square, March 14, 1899 (SEATTLE 3047).jpg</a> probably better for most purposes]].
</p>
<hr>
Before October 18, 1899, because no totem pole. So assuming the University of Washington Libraries are correct in saying 1899-1900, it's 1899.
<bdi><a href="https://en.wikipedia.org/wiki/en:John_P._Soule" class="extiw" title="w:en:John P. Soule"><span title="American photographer">John P. Soule</span></a>
</bdi>
University of Washington Libraries says between 1899 and 1900 <div style="display: none;">date QS:P571,+1500-00-00T00:00:00Z/6,P1319,+1899-00-00T00:00:00Z/9,P1326,+1900-00-00T00:00:00Z/9</div>. No totem pole, so between 1 January 1899 and 18 October 1899 <div style="display: none;">date QS:P571,+1899-00-00T00:00:00Z/9,P1319,+1899-01-01T00:00:00Z/11,P1326,+1899-10-18T00:00:00Z/11</div>.
<a rel="nofollow" class="external text" href="http://content.lib.washington.edu/seattleweb/index.html">Seattle Photographs</a>