Featured Age of this porcelain brooch/pin from Germany?

Hi there. This brooch/pin was amongst a lot that I bought. It has a label on the back that reads "Schumann Porzellan" Bavaria. I have looked up the company but can't figure out what age the pin is from the descriptions of which Schumann took over when! I have also found some similar pins online that date them anywhere from the 1910s and later. Opinions on age would be appreciated. Thanks!

 

https://www.porcelainmarksandmore.com/germany/bavaria/arzberg-02/index.php

Looking at the marks, 1918 - 1929 seems to be the range.

 

Great, thanks for that!

 

https://gem.app/search?terms=vintage porcelain brooch schumann

 

JMHO. form of sticker is mid- 1950s and later and nowhere near antique as some sellers want to make believe.
https://picclick.de/antik-oval-Bros...handbemalt-Bavaria-Schumann-303782950523.html

 

Thanks. I think @Roaring20s date range was based on the Schumann stamp on the porcelain rather than the sticker. Perhaps the stickers were added later?! The stamps seem to be indicate an earlier date?

 

This person seems to have done a lot of research on the Schumann factory: Schumann Tables of Marks and Patterns (efineantiques.com) if you scroll down, the stickers are included in his research.

 

why would they ?

 

I guess they wouldn't.

 

Lot of information packed into that site.

 

Indeed!

 

easiest would be to analyze if it's the old glue that was normally used for pubs - fish glue.