According to the PCGS Certification Database, the requested certification number is defined as the following:
|18-Aug-2019||$1,560||Heritage Auctions||2019 August 14-18 ANA U.S. Coins Signature Auction Chicago, IL|
|27-Jul-2013||$1,880||Stack's Bowers||The August 2013 Chicago ANA World's Fair of Money|
|09-Jan-2013||$2,350||Heritage Auctions||2013 January 9-14 US Coin FUN Signature Auction - Orlando #1181|
This cert is currently in the Set Registry inventory of psslomianyj and is featured in one or more sets, including Subway Tokens.
View a Set Registry collection that includes a 1951-S 50C coin: