Sixteen years have transpired since I first started this Joe Doyle survey regarding this "Printer's Mark"......
https://www.net54baseball.com/showthread.php?t=87066
My data indicates indicates that 5.96 % of Doyle's are found with this printer's mark.

- - - - - - - - - - - - - - - - - - - - -^ - - - - - - - - - - - - - - - - - - - - - - Printer's Mark - - - -^ (remnant of
"N" in
Nat'L)
418 unique samples
T-brand.............Mark.....No-Mark
Piedmont 350........15..........173
Sweet Cap 350.......5...........151
Polar Bear..............4............35
Old Mill..................1.............7
Sovereign 350.........0...........19
Tolstoi....................0.............6
EPDG.....................0.............2
____________________________
Totals.................. 25 ........ 393
25 - Joe Doyle cards with this Printer's Mark......
25/418 = 5.96 %
TED Z
T206 Reference
.