I need some help with a Chinese mark?

Saw this nice big bowl. But I am clueless about Chinese/Oriental goods. Hoping you would be able to id? Dynasty? Or idea of Worth? Just spotted.

The nerd

 

Just a guess - maybe try looking at vietnamese or thai? Modern I would guess... I could be way off.

 

Would not know where to start. It's all Chinese to me. But thanks. I do appreciate your help. thank God

 

Looks Japanese. Not old, but very nice.

 

China uses that flower on a lot of their china/porcelin.
Patd

 

The flower looks like a stylized chrysanthemum, a favourite in Japan. Many Japanese 'Mon' or family seals have a chrysanthemum, it is also the Imperial mon. The colours also look Japanese to me.
Chinese depictions of chrysanthemums are usually more realistic, and they use different shades of white and blue.

 

It's so challenging to decipher these marks. I'll bring it to an auction house see what they have to say.

Thanks!

 

Words say 玉堂 ("Gyokudo" if Japanese, "Yu Tang" if Chinese).
Not an expert but characters look to be modern...post-50s at least? I googled 玉堂窯 and came up with both Chinese and Japanese results. For Chinese....there appears to be a ancient pottery village in Sichuan by that name.
For Japanese, there's an artist called 手塚玉堂, but the mark doesn't look same.