As those of you who follow these discussions know, this is not in my wheelhouse. However, I do have a small library of material not directly related just to my narrow field of collecting. So, I got out my magnifying glass and tried to relate the piece under discussion to some of the porcelain in texts. In a book published some years ago and purchased from the National museum in Taiwan is a plate(not a bowl) that is similar in design. The key differences are 1) The museum plate has a six character reign mark display 2) It also has minor edge fritting 3) The brushwork is very "free" and the blue varies quite a bit from one area to another 4) The cobalt is a very different shade 5)The underside is not disturbed as it seems to be on the subject bowl. For the above reasons, it appears to these old eyes to be a modern attempt to duplicate a porcelain made in a heralded era.
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