http://www.sothebys.com/en/auctions/2014/175-masterworks-n09275.html?cmp=email_N09275_1214_5_AURexample2_event_button1 I didn't see any $6.5 million prints in there (as in http://www.forbes.com/sites/rachelhennessey/2014/12/12/peter-lik-phantom-worlds-most-expensive-photograph-arizona-antelope-canyon/), but then these are pretty old. Ken