[Leon]

I will throw a few guesses in on a few of the questions. I think they are from the 1910-1920 era. I think their value is around $25 for each the team and the stadium, plus or minus $10 each. The single person in some kind of athletic garb is probably $10-$20. Now, if you can do some research and find out more....then maybe the value can go up. But as they stand with no other info, those would be close guesses. Good luck on finding more info. As said before, I have around 250 real photo baseball postcards which are similar in nature.