I've been waiting for one of these to come up on ebay for about 4 yrs and finally did:
"The National - American Base Ball Game - Parker Brothers, 1913"
The cards are 2 3/8 x 3 1/4" and the backs are used to play the board game. The cards come in blue and red variations with the reds being somewhat more rare.
The game comes with a set of 50 game cards with Nap Lajoie on the face.
The box is not in great shape but if one came up in solid shape - the bidding might be busy.
The board is very small - this almost looks like a game to take while traveling; I'm glad the instruction booklet is still there also!
All card collectors know this card but I figure not as many know what the game looks like.
Thanx for viewing.
mike