Several old shelves held hidden secrets, including a receipt book from the 1920s.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/28364885@N02">Oregon Department of Transportation</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/oregondot/13949265866/">Salem RR Depot - April 2014</a>