beatiful little jar, eartenware

I bought this beautiful little eartenware jar today. It looks like a German heraldic drawing on it. If I look right it says 'SPAß' which means 'FUN'.
I think it is enamel paint, it is very thick on some parts (the red color)

Does anybody recognize it, or the signature on the bottom to help me find out more about origin and age.

Thanks a lot