The Masters Series was published in The Bulletin, during the years 1991 - 1993. Each article consists of helpful advice from NMRA Master Model Railroader(s) concerning how to qualify for a specific Achievement Program Category.
Credit for the inspiration to make these articles available goes to Rick Shoup, Master Model Railroader number 234, and NMRA National AP Manager, at the time he suggested these as suitable material for the site. The conversion of this series is an ongoing project, additional articles from this series will be converted in the future.