Need Help Identifying The Signature!!

Hi friends, Can any help identifying artist name from signature of this style of painting?
Thank you in advance.
Abdel,

 

Well, it says "Charlie Brown" but since your painting is from Spain and Charlie Brown was a Charles Schulz character doubtful true name of artist. 1970s.

Debora

 

According to this article, Macarrón was a famous artists' supply store in Madrid. Closed in 1995, the year of its 100th anniversary.

https://elpais.com/diario/1995/02/20/madrid/793283066_850215.html

Debora

 

Macarron S.A is a famous showroom in Madrid, and also a famous supply store of artists.

 

we can say it's an OTHER STYLE of his signature and it's a genuine of Charles Schulz

 

VERY 1970's ! I love it,but of course couldnt find the artist.I did find a Charles Brown on facebook,maybe it was an earlier work by him? https://www.facebook.com/charlesbrownartist/

 

Shulz never signed charlie brown.........less of course you were just kidding around...

 

I'm not kidding. I'm just want to know more information about the signature

 

This would be another Charlie Brown, or someone who used Charlie Brown as a nickname.