http://www.cnn.com/2013/03/20/business/sothebys-china-bowl/
http://www.dailymail.co.uk/news/article-2123864/3-jumble-sale-sketch-turns-Warhol-artwork-valued-1-3m.html
http://www.cnn.com/2010/SHOWBIZ/07/27/ansel.adams.discovery/
http://philadelphia.cbslocal.com/2016/07/01/bucks-county-man-to-display-original-copy-of-declaration-of-independence/
http://www.nytimes.com/1991/06/14/arts/declaration-of-independence-sells-for-2.4-million.html
http://www.cbssports.com/nfl/news/thrift-store-vince-lombardi-sweater-sells-in-auction-for-43020/
https://www.theguardian.com/us-news/2015/oct/19/man-who-discovered-rare-billy-the-kid-photo-the-hunt-is-a-really-grand-thing#img-1
https://blogbeckett.wordpress.com/2009/02/10/bernie-gallegos-1869-baseball-card-sells-for-75285/
http://www.foxnews.com/story/2007/10/30/german-student-finds-valuable-painting-in-thrift-store-couch.html
http://archive.archaeology.org/0005/newsbriefs/pharaoh.html
http://www.cbsnews.com/news/60-minutes-original-jackson-pollock-sold-for-five-dollars/
http://www.nytimes.com/2006/11/09/arts/design/09poll.html
http://www.dailymail.co.uk/news/article-4428868/Haul-gold-coins-stashed-piano-worth-500-000.html