Posted By:
Jon CanfieldTed, while I've sold my Doyle and don't remember any mark or not, this recent auction for a SC 350 had no mark:
http://cgi.ebay.com/1909-1911-T-206-Card-143b-Joe-Doyle-New-York_W0QQitemZ220114563858QQihZ012QQcategoryZ86840 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
This one with a PB had no mark:
http://cgi.ebay.com/1910-T206-Joe-Doyle-Over-PSA-3-7301_W0QQitemZ190116414755QQihZ009QQcategoryZ31718 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
and this one on the LOC site with a SC 350 back has no mark:
,0785bu.tif&displayProfile=2&dir=ammem&itemLink=D?bbcards:4:./temp/~ammem_NERg: