VTG WMF German Art Deco Hammered Silver toneCoffee Teapot, 1.0L, D.R.P.

My research showed this Pot it might be from 30’s but I can’t be %100 sure.For sure it is vintage.It is Insulated and the ceramic pot comes out  to clean.There is no crack no chip on it.Only metal side has some discoloration. Please message me if you have any question