This muling of 2 undated flying eagle obverse dies is one of the more unusual pieces produced. The Judd book lists this under 1858 whereas Pollock lists it under 1856. It has long been considered unique with a pedigree of Fewsmith, Mason, Parmelee, Woodside lot 70, Woodin, Brenner-1914 ANS exhibit, Boyd, Judd, Lauder, Bowers and Merena 9/93, Stacks 5/97 where it was graded PCGS62. There is however a listing of a possible second specimen in S. H. Chapman's May 1914 sale of the William Gable collection. Lot 1527 is described as follows: "1856 Cent. Without date. United States of America. Eagle flying l. Rev. Eagle, without ins. Nickel. Proof. Excessively rare. Not in A. & W. Combination of obverses of 211 and 214". If this is not the same as the Woodin, Brenner-1914 ANS example, then there are 2 of these and the full pedigree listed above would likely need to broken up. Photo is a scan of the actual coin from Stacks 5/97 sale.