[SteveMitchell]

Hall of Fame issues such as the Albertype and Artvue postcards (Type 1 & Type 2 of each), the various issuers of gold/yellow postcards and the 1981-89 metallic plaque-cards are others that come to mind. All were sold at the Hall of Fame Museum store or by subscription (in the case of the metallic plaque-cards).

In addition to the Conlon Collection cards mentioned, Rube Waddell was also featured in the large format 1984's (Smithsonian) but (surprise!) not the first modern set (1981) distributed through The Sporting News.

As has been mentioned, the Beckett Alphabetical Baseball Card Checklist book is helpful with 90%+ of the issues listed. However, that book misses the '84 Conlon card, among others to be sure. Still, it is one of my most used guides.