It is unknown exactly how many of those 159 monster boxes still remained in their mint-sealed, unopened state by the time that the FOI release was made known, but the vast majority of them had likely been opened by then, their contents irreversably mixed with the general population of 2015 ASEs. It has been estimated that as few as just ten monster boxes (5000 coins) remained unopened, with seals unbroken.
Nly these surviving UNOPENED monster boxes from Philadelphia (identifiable only by serial number) were eligible to have their contents authenticated by PCGS/NGC/ANACS as "struck at the Philadelphia Mint" and "one of 79,640 struck" and slabbed with the "(P)" (implied-P) mintmark. Most examples graded MS69 (or lower,) with only a relative handful grading a perfect MS70.Census / Population Report Numbers for 2015 (P) ASE. NGC has graded a total of 1948 , with only 48 graded MS70. PCGS has graded a total of 2158 , with only 235 graded MS70. ANACS has not released a census report for these to date. Two such coins are available, with both coins being beautiful, premium-quality, spot-free examples the one photographed is representative of both.
The item "THE RAREST ASE 2015 (P) American Silver Eagle 79,640 Struck ANACS MS70" is in sale since Thursday, February 15, 2018. This item is in the category "Coins & Paper Money\Bullion\Silver\Coins". The seller is "morgancollector" and is located in Feasterville-Trevose, Pennsylvania. This item can be shipped to United States.