1940's German Souvenir Ashtray with Real Gold

This vintage porcelain ashtray, made by the artist Rudolph Wachter, features a beautiful landscape painting of a German castle. It is lined in real gold and labelled with a sticker that says "echt gold" which translates to "real gold". Beneath the castle is some text, "Gruss aus Stuttgart Altes Schloss", which translates to "Greetings from Stuttgart, Old Castle". The bottom of the ashtray has the makers mark and the writing "handgemalt" which translates to "handmade".