This reverse hub trial is listed in appendix A of the 7th edition of Judd on page 229 as a half eagle trial and in Pollock as a possible quarter trial. In either case, it does not appear to be a mint product. At least 5 examples are known as follows: 1) Early American History Auction 4/03 - illustrated above, click on the thumbnail image to enlarge 2) Martin-StacksBowers 8/23 - PCGSXF45 3) StacksBowers 3/24 - PCGSAU50. 4) Heritage 8/96 ANA, Heritage 3/99 5) White-B/M 9/89 A possible 6th is Merkin 2/72, Heritage 2/93 - photo too dark for attribution. Photo courtesy of Early American History Auctions.