Hi Peter, This is the 3rd of the 4 pieces from the auction, this one has a texture on the bottom, and is in my book but I do not know if it is from the period as the one in the book, they do not show the bottom they are saying 1785 to 1790 and this one is larger than the one that is in the book, the pattern and shape and color is the same, Please let my know the age and your expert opinion, thanks.
Here is more photos to view.
Here is the last set of photos for your viewing, thank again Peter.
This one could be Qianlong, and indeed Canton ware.
Thanks Peter, This is actually larger than the one in my book, it is 40.6 cm long and 33.6 cm wide.