PSA slab displaying and fading question
Hello
I have some signed baseball cards in a psa slabbed that is like to display on my wall in a psa card frame. Most of my cards are signed in ballpoint pen but some also signed in blue sharpie. In your opinion will my cards fade if I display them? ( do vintage signed cards signed in ballpoint fade if displayed? Are vintage signed cards in sharpie a better or worse option for display?) thank you in advance for your help, opinions and advice on this.
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