David Akers (1975/88): The 1878-CC is a rare date in all grades; in fact, it is the fourth rarest CC-Mint Double Eagle, just nosing out the lower mintage 1879-CC. Virtually all known specimens grade in the F to EF grades and a strictly graded AU is a rarity. In full mint state, the 1878-CC is extremely rare and the few known uncs, with one notable exception, are barely Unc-60. The one exception is a borderline gem that came out of Europe in the 1960's and was sold by Max Humbert to a collector, Milt Kaufman. Kaufman's collection has since been sold and I do not know the present whereabouts of the coin. I have never heard of another 1878-CC near that grade and so the Kaufman specimen may well be the finest 1878-CC in existence. As a further testimonial to its condition rarity, it can be noted that the 1878-CC ranks in the top 10% of the entire Double Eagle series according to rarity by average grade.