Here is the corresponding W601 Supplement along with its cover which was issued at the same time as the postcard. The Detroit image is identical to the postcard. The cover clearly states "1907" and that it includes "Teams of 1906".
This 1907 Portfolio was offered at the beginning of the 1907 baseball season.
Last edited by robertsmithnocure; 09-17-2024 at 04:07 PM.
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