$50 Slug Facsimiles .. was able to complete this collection in 2008 .. then published Reference Guide .. today the Guide with Jankovsky J-#’s is now being used by the major Coin Grading and Auction Companies .. the last of this collection was sold by Heritage in Aug. 2013.

NGC Article .. below is article published by NGC in which I provided some history on the $50 Slug Facsimiles.