Posted By:
Vincent. . . on eBay, along with 10 or 11 other Tiger ballplayers from the 1907 Wolverine News postcard set. This Cobb too is postally used, with some writing at the bottom of the image.
http://cgi.ebay.com/1907-TY-COBB-DETROIT-TIGERS-WOLVERINE-BASEBALL-POSTCARD_W0QQitemZ380103184867QQihZ025QQcategoryZ8 6840QQssPageNameZWDVWQQrdZ1QQcmdZViewItem>