[savedfrommyspokes]

Does the Ebay Authenticity Guarantee reveal "hidden" max bid amounts??

In a way, YES!

I was bidding on a PSA card and had placed a max bid of $200. There was no mention of the authenticity guarantee showing anywhere in the listing at that point. Later I noticed I was outbid with the new high bid being $202.50 and the authenticity guarantee disclaimer was now mentioned. I then bid $250 and was still outbid meaning the high bidder's max bid amount was north of $252.50.

Therefore, it appears that when a bidder's (hidden) max bid amount is higher than the authenticity guarantee threshold ($250 on graded cards), no matter the current bid, the authenticity guarantee disclaimer will then be present in the listing.

So YES, I do know when another bidder has a max bid of over $250 on graded cards as the authenticity guarantee disclaimer is present in the listing.