Interesting Etching - Cubist?

I am wondering if anyone can help identify the artist or provide examples of similar works. I examined the work outside of the frame but did not see a signature under the mat. On the back of the mat was a signature in pencil "Scheinbaum"...measurements of the paper and mat opening. One interesting detail was towards the bottom center of the etching was an impression/stamp of what appeared to be a face. I'm not sure if this will help but hopefully these few details can point me in the right direction.

Many thanks!

https://imgur.com/a/d2zB7cy