I just received some cards that I recently won and was looking at SGC's population web page and became a little confused.
I was looking up my Jeff Sweeney Sweet Caporal and noticed there were three entries for Jeff Sweeney Sweet Caporal, a 1909-11, a 1910 and a 1911.
I looked up another card and it was listed as a 1909, a 1909-11, a 1910 or a 1911.
What are the differenced in the cards?
