eisernes kreuz ii klasse maker question

[michal19]

hello what do you think who can be the maker?
i've searched the forum and i think it can be grossman [11] but the dates in my cross are tliitle corroded so i need the help of a more experienced eye.the frame also looks similiar but i think there are many examples that also shows the shape features.the cross is standard three piece construction and a magnetic one
regards

[Chrish124]

Looks like an unmarked Zimmermann (6). It is not a Grossmann.