Posted By:
Richard DwyerYou can find the factory, district, & state info here:
http://www.oldbaseball.com/refs/factory.html
Tax stamp date should be 1909-1911. Series of 1909 or 1910. If there is overprinting on the tax stamp, it should have the date of 1910 or 1911.
Mastronet has been listing boxes for some time now that they don't bother to check out themselves either. Don't feel bad. Mastronet should know better.
Edited to add Mastronet comments.