Posted By:
T206CollectorYou can just put the guy's name if you want on the submission form. They know what a T206 is and, by looking at the back, can often specify the appropriate year (e.g., Series 150 = 1909). They keep it as 1909-11 on issues, like Polar Bear, where they are uncertain as to year.
Of course, there is always going to be some discussion that Series 150 cards may have also been issued in 1910, etc., but basically this is what SGC will do on their own. They are not just taking the submitter's word for it.
Hope this helps.