[Archive]

Posted By: D.C. Markel

I couldn't give you exact dates, but the oldest slabs - circa 2000 and older had a PSA hologram, then they switched to the CU hologram for a couple of years, then they dropped the foil hologram completely, and then had some gimmick that used a plastic viewing decoder. I don't know if the slabs made today work with the decoder - it just seemed to die off with no mention.