Ludwigshafen am Rhein, Rhineland Palatinate.
"Greetings from Ludwigshafen a/Rh." c/w a castellated Shield which contains the Bavarian Lozenges and an anchor for Ludwigshafen, plus spade and key symbols signifying outlying villages, now absorbed and all named for King Ludwig 1 of Bavaria. Rhineland Palatinate was a region of Bavaria until after WWII.
Porcelain HahnLudwigshafen am RheinHandpainted together with the V&B-M Mercury markplus 4 for 1904?