Attribution in the caption. Useful resources.
 

Hello dear friends.
Give links to websites with which you can attribute the signature by some artists. Mostly Western European and American.
https://www.artsignaturedictionary.com/
http://www.auktion-bergmann.de/Katal...id=300&pidx=14
The information is intended primarily for "beginners".
Please add more reference to this topic.
Sincerely,