Great thread topic! I have the following six flannels:

1938 Ray Berres Pittsburgh Pirates Road
1941 Harry Danning New York Giants Road
1942 "Muddy" Ruel Chicago White Sox Road
1946 Nick Strincevich Pittsburgh Pirates Road
1960 Haywood Sullivan Boston Red Sox Road
1970 Pete Ward New York Yankees Road

I prefer the road flannels because they have the city name on the front.