Posted By:
Mike PeichHi-
This is one of two postcards (the other is the White Sox) published by V. O. Hammond (Chicago) in 1906 to celebrate that year's two pennant winners. They are catalogued in SCBC on p. 170. Yours looks to be a Vg/Vg- which is listed at $175. I picked up mine two years ago at a large flea market (I know, I know, the old "flea market" gambit, but it's true) while visiting my brother who lives west of Chicago. I paid $160 for both, and they're strong Vg/Vg+, although postally used. Hope this helps.
Regards, Mike