"Facsimile Autographs" are, apparently, a "thing":
https://www.sportsmemorabilia.com/news/fact-or-fiction-facsimile-autographed-collectibles/
"Defined as an exact copy, a facsimile signature mirrors a genuine one but is created by machine and therefore cannot be considered an authentic player signature. While finding the difference between the two can be a challenge to the untrained eye,
by law, a company must define what is authentic and hand-signed and what is created by machine, or facsimile.
Here at SportsMemorabilia.com we use facsimile autographed pieces as a way for fans to bring favorite players into collections of all sizes at an affordable price. Take for example, a photo signed by Babe Ruth. Difficult to find under a thousand dollars yet highly popular among fans and collectors of all ages, a facsimile autographed Babe Ruth photo brings this legend into your sports collection at a reasonable cost. A facsimile autographed collectible also allows for continued sales of legends who have passed away and therefore have limited hand-signed memorabilia still in circulation."
The rub in Autograph Authentication's presentation is that they seem to be using the term "authentic" misleadingly and not clearly identifying items I'm sure are facsimiles, like every guitar I checked, that didn't exist at the times the artists could have been alive to sign 'em.
I suppose if you used their "verify authenticity" button they may finally disclose but it's still cheesy as hell.
Here's an outfit that appears to be doing it "right":
https://www.hollywoodmemorabilia.co...ned-clear-drumhead-jerry-garcia-bob-weir.html
"This Is A Brand New Clear 12 Inch Drumhead Which Features The Facsimile Autographs Of The Grateful Dead Including Jerry Garcia, Bob Weir, Phil Lesh And More. Comes fully certified with Certificate of Authenticity and tamper-evident hologram. Also backed by HollywoodMemorabilia.com's Authenticity Guarantee."