[Brian B@rry]

Hi -

I have begun collecting Parkhurst hockey from 1952-55. Why do so many of these cards exhibit “foxing” - a brownish discoloration, usually on the borders?

I rarely notice it in Topps baseball from the same era.

Is it because of the paper stock? Canadian winters?

Any explanation would be appreciated!

. . . And then there are tape stains . . .

Thank you!