Ron and Ryan
I considered the POLAR BEAR darker ink (vs the PIEDMONT blue). However, the timeline does not favor the POLAR BEAR ink.
As you know, the Powell & Walsh are 150/350 series subjects which were in OLD MILL print runs circa late 1909 / early 1910.
The first POLAR BEAR print runs were circa Summer 1910.
Great work there, Ron.
TED Z
T206 Reference
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