PA Billy Bus and IBT Local 397 Worksite Leaflets
Molly Theobald, for the <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/labor2008/">aflcio2008</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/labor2008/2849452534/">PA Billy Bus and IBT Local 397 Worksite Leaflets</a>