What does "plate signed" mean?
 

NEVER MIND> GOOGLED IT
I've been wanting a nice set of rolling stones signatures. I came across quite a few lithographs on ebay that say they are plate signed?
I am assuming they are not really signed. Am I correct? Here is an example
https://www.ebay.com/itm/THE-ROLLING...cAAOSw9Ypa4MlE

plate
 

It means that when they did the litho they all signed the original plate with there signatures. Then when they did the litho run all the lithos have autographs. :)

Not hand-signed.

Originally, artists often signed their names on the printing plate (in the plate), so the signature was printed as part of the graphics.

For art prints, "hand signed" is the term you are looking for.

thanks!