Mark, nice autographs which prompted me to remember this piece I have.
Got all the auto's myself starting in '81 and after a few, i realized that all the players played in 1939 (except for Waite Hoyt who retired in '38) when this stamp/First Day Cover came out for the "alleged" 100th anniversary of Baseball.
So my theme was to have all the players who signed be Hall Of Famers and who played in 1939.
Now 70 years later, there's no one else I can ever add to it.
When I met Ted Williams (Atlantic City show in '88) I handed him the green pen as Ty Cobb often signed items like that. He liked how I knew that and even offered to buy the piece after he signed it.