1962 Topps Wood coloring question

[oldschool73]

Hello-

I've recently started collecting 62 Topps. The wood frame coloring varies from light brown, med brown, to dark brown...

1. Is this variance in colo due to aging, printing or perhaps by design?
2. Any thoughts on impact to grading?

Thanks
-os73

[G1911]

Exact shading always varies slightly by the ink levels at the time a sheet was done, but it's mostly variance between the series. Some of them are dark, and some were a lighter wood.

[ALR-bishop]

Plus there were likely different printers involved in the different versions of 110- 197

[oldschool73]

Thanks!