Schramberg Majolika coffee service age

Hi,
I‘m Marie and new here
Have some old Schramberger Majolika stuff and wanted to find out the age of some pieces.

I want to start with my favorite coffee service.. the decor is called „437“.
I add some pictures, also from the stamp.
Miss some pieces and hope to find them someday.

Can anyone help with age and maybe the designer?

Thanks and have a nice day,
Marie ‍�

It looks to be from the late 1920s/early 1930s and as Eva Zeisel did design for them it would be good to say that it was her design.

However there is a website https://www.evazeisel.com/ which shows her designs for Schramberg but I don't know if that is all of her design. Certainly none that are shown match.

There is a contact page on the website above so you might be able to ask them.