Phoenix Blue and White

[ssbill]

How old do you  think this plate is? I've read somewhere a plate with an unglazed bottom can be from the kangxi period. Thanks

[peterp]

Unglazed bottoms were made throughout much of the early and mid Qing dynasty, although they were not that plenty.
There are several things that are not typical, so I would recommend to provide (1) a partial picture of a part of the decoration, with good resolution, to view the blue color, (2) the brown other rim and its shape, showing if there is a lip, (3) the foot rim, taken at an angle, showing its cross shape, and (4) a part of the bottom area, to show if it is natural or made to look old. This color is always suspicious.
Dimensions?

The underside decoration could as well be Japanese.