According to the PCGS Certification Database, the requested certification number is defined as the following:
|September 2017 Collectors Choice Online Auction U.S. Coins
|June 2017 Baltimore U.S. Coins Auction
This cert is currently in the Set Registry inventory of Island City and is featured in one or more sets, including Island City All Coins.
View a Set Registry collection that includes a 1903-O 25C coin: