I'm nearing completion on the 1910-1919 Coupon Baseball (T213) Checklist. It's not perfect but I think I've gone as far as I can go. The last item I'm contemplating is adding the known "Factory No 8" overprints to the Type 3 subset. The only problem is that I don't know all the "Factory No 8" overpints that exist (I don't know if anyone does). So I may just leave them out and we can add them later if so desired.
If anyone wants to view the rough draft checklist, I have it posted on my blog. Don't get excited it's not really a blog it's just a place where I store junk. Here's the link:
https://toppsology.wordpress.com/
If you want to go directly to the excel file, here it is:
https://toppsology.files.wordpress.com/2018/04/t213-coupon-baseball-cl-master.xlsx
I anticipate that I will upload the checklist within the next day or two. If you have comments or suggestions, let me know.
My two-cents is worth slightly more than a penny.
-- Chad --