Please help identifying amazing sketch artwork

[930classics]

Hello,

i inherited a few amazing vintage sketches,most of them are nude, please help me identify the artist, i enclose photos of signature.

thank you

[debora_34_]

Looks to be student work from a life drawing class.

Debora

[debora_34_]

What is the medium?

Debora

[930classics]

Pencil on paper.

[debora_34_]

Yep.  Signature monogram hard to read but looks like initials S. G .Z.  

Debora

[18704d]

Charcoal and white pastel

Lynn

[sonomabarn67]

Or China white.

[930classics]

The big question is who is the artist.

[mountaingigi]

This looks like student art class work with a live model, the artist's name is not going to matter. Yes, it's well-done (except for the hands), no, it's not a listed artist.

[930classics]

Thank you