Who is German maker OS?

[Ubaranda]

Hi all!
I have very nice German "hearts" cup. Maybe anybody knows who is maker OS?




Will be grateful for any information.

[Bahner]

Hello, that is the mark of Josef Oswald Nf., Jürgen Oswald, village of Freigericht near Hanau. See their homepage for this cup and other objects. Best wishes, Bahner

[Ubaranda]

Thank you very much for your help!
Best regards, Alex.