Need help with age on this small porcelain dish marked Bavaria

This is a pretty, little porcelain dish with violets and gold trim. It is 6 1/2" handle to handle and 4 1/2" wide. It is only marked Bavaria and the number 37 which I presume to be a pattern number. In my research I found that Bavaria became a separate entity following WWI and by WWII it became part of the Germany Republic. So without a factory mark, do you think this was made between the two wars? 1920's-1930's? Thank you for looking and assistance.

 

Violets. My favorite flower. I think it's earlier given the Art Nouveau influence. Here's a celery dish in the same pattern. eBay seller says maker is PM.

https://www.ebay.com/itm/274727242856

Debora

 

Thanks @Debora. That is very helpful. There is a lot of information out there on PM Bavaria. It is exactly the same pattern for sure.