I have no Certificate of Authenticity for this. On all signed items, buyers have 30 days from the end of the auction to do whatever "authenticating" they want to do, and they can return any signed item within that time.
I assume you know that there are tons of dishonest autograph dealers in the world, and that Certificates of Authenticity are often worthless. One is always gambling when buying a signed item, unless it has impeccable provenance, and when items do, they almost always sell for multiples of the price of similar signed items that don't have it.
I never said nor was suggesting a Cert of Authenticity, as those
are usually worthless.
I was more meaning that in your description, you state that the card was signed by Helm:
"Important Added Info: Note that this item has been personally autographed (signed) by Brigitte Helm!" If you don't know this for certain, and have no way of verifying that, how can you state in the auction that it
WAS actually signed by her?
And whys does it fall on the shoulders of the winning bidder to prove what they have purchased is genuine? That should be the responsibility of the seller/dealer/auctioneer.
And if questionable, is it not in everyone's best interest to just pull the auction altogether?