MMIX (2009) Ultra High Relief $20 Gold Coin. Chief Engraver John M. Mercanti Signature. MS-70 PL (PCGS).，This piece is as struck, pristine and aesthetically pleasing in all regards. Produced to demonstrate how modern minting techniques now enable the striking of such a coin, the MMIX Ultra High Relief $20 gold piece displays a rendition of Augustus Saint-Gaudens famous design from 1907. Examples of this 114,427-piece issue, all of which were struck at the West Point Mint, have been popular with collectors since they day of initial sales.，PCGS# 506602. NGC ID: 26KR.，，
