My intention regarding this post is not to smear the auction house that lists this item but rather to create awareness among collectors to be careful when purchasing classic covers. In an earlier post by "funcitypapa" regarding criteria for getting certificates of authenticity (see link:
https://goscf.com/t/11681 ) I mentioned getting certificates for classic covers because stamps are often attached to covers they didn't originate on. Well check this out; Downeast Stamps, Auction 266 of 26 Jan 11, lot 1920: 1, 5˘ red brown, vertical pair, VF, large margins, on 1848 folded letter, red Pittsburgh, PA cds, h/s 10 rate, to East Killingly, CT
(link:
http://www.destamps.com/main.htm )

By being a collector who specializes in 1847 issue, I have seen many repeat specimens come up in auctions time after time, and this is one. I thought I recognized it from a Cherrystone auction in September and sure enough there it was, September 2010 Auction
September 14-15, 2010 U.S. & Worldwide; lot #3 where it was properly described;
United States 1847 Issue 1847 5c red brown, vertical pair, red cancels, margins all around, on FL from which it did not originate, small scissors cut between the stamps and small tear affecting the bottom stamp, otherwise v.f., with 2010 PFC
(link:
http://www.cherrystoneauctions.com/...e&startlot=1 )
My point is Cherrystone auction mentions the 2010 PF cert that confirms the stamps did not originate in that folded letter. Now up for auction again this time at Downeast the certificate is not mentioned and looks to me that it's being sold as a genuine use on cover, where did the cert go? Hmmmm…. it makes you wonder, don't it? That is why I get my 1847 issues certified.