Posted By:
Robert SHere are two variations of these White Sox / Cubs cards:
1) 1906 White Sox with red overprint:
2) "1907" variation of 1906 Cubs PC which references the Cubs 1907 Pennant Victory, but not their World Series victory. The card was produced for the World Series (this example was postmarked after Game One and the sender's message even mentions this Cubs-Tigers 1907 World Series tie game, the first tie in series history):
