[Laxcat]

Originally Posted by jsq

you mention loupe and black light to determine if a card has been tampered with. i vaguely recall reading in another collectible paper area that a black light worked extremely well to detect doctoring of the paper.

could someone elaborate if this is accurate with baseball cards? and specifically how effective it is?

also, does the the black light pick up on these same anamolies inside a slab?

and do the grading companies use a black light on all higher end value cards?

just wanting to understand,

thanks
jsq

Here is pic of a black light. I think paper made after a certain year has whitening agents added. The newer stuff will "glow" under UV light. The Comiskey is an a16 and the Morrell is a 1972 TCMA reprint.