can anybody help me find this porcelain signature/mark and what it is? anybody knows?
Porzellan is the German word for porcelain. However, I couldn't find any German company, current or historic, that had the initials 'A S'. Nor could I find that logo anywhere. Best bet is asking an antique dealer. Fair chance that it could be a small time German-speaking porcelain craftsman who you will never find.
>>368181
Annaburger Steingutfabrik, but I didn't see the logo there (see e.g. pic with A St AG in the logo)