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Posted By: J.McMurry

Has anyone researched the different PSA holders and estimated a timeline for the changes? In my small collection of PSA's I've noticed about 3 different holders:

a.white area on front of flip either has rounded corners or squared corners

b. Numerical grade and condition grade are either on one line or 2 lines.

c. rear of case either has psa emprinted white into the plastic of the case with a hologram, or it is blank with psa imprinted in silver foil on the flip.

d. two types of holograms, 1 with the psa letters and one with the collectors universe logo.

It's kinda silly I guess, but I was just curious if anyone knew of a timeline for these changes or knew of any other differences.