rare asian plate

[johnw]

could this be from a shipwreck is that why i cant find it on web

 

[Montana Jim]

Are these two different pieces?

Here is some information on the bowl... as far as I can figure - modern.
Please feel free to work out the date with a professional.

See the yellow boxes...

 

[Montana Jim]

You're right... one of the symbols is opposite. I'm just a new Yorker living in Montana - get a professional to check it out, there are a ton of sites on line for identifying the mark.