One is PSA, one is BVG.
These were on the market for about ten seconds and consisted of a clamshell rigid plastic structure. Didn't do well but have become very popular in recent years as the only really good product for putting slabbed cards into binders.
Looks like there is a new company making similar products now
Last edited by Exhibitman; 10-18-2020 at 01:07 PM.
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