Hello, I am a complete noob when it comes to this stuff. A friend of my mothers passed and left her with the following painting. Any help is appreciated. I believe it is a sketch of Michelangelos Medicci Madonna, but I am looking for any info on its potential price.
First picture you need to rotate your head Imgur Imgur
In the back it is printed; Imgur
First picture you need to rotate your head Imgur Imgur
In the back it is printed; Imgur
