Mysterious Zerbe Proof Morgan Dollar Celebrates 100-Year Anniversary

100 years ago, the 1921-S Zerbe proof Morgan Dollars were struck at the request of prominent numismatist Farran Zerbe. The coins are great rarities in the Morgan dollar series, much more elusive than their Philadelphia counterparts. The official mintage total is unknown, but the most-often quoted figure is just 24 pieces struck. At least five examples of these mysterious coins survive today. PCGS has graded a total of five coins, possibly including some resubmissions, while NGC has not certified any examples of this issue.

Stuart Mosher told the story of the origin of these coins in an article in the July 1955 issue of The Numismatist:

Heritage will be offering one of the 5 known examples in April. With 2021 being the 100-year anniversary of these intriguing coins and with the new celebration of the Morgan and Peace Dollar being struck by the US Mint in 2021, the timing seems ideal for this rarity. The example up for bid is graded Specimen 64 by PCGS and verified by CAC.

The last time Heritage offered this coin in 2014, it nearly broke the six-figure mark at $94,000. Place your bets (and your bids) on what it will go for this time:
https://coins.ha.com/itm/morgan-dollars/silver-and-related-dollars/1921-s-1-sp64-pcgs-cac-pcgs-7348-/p/1329-17010.s