Vivid Fruit Cup and Saucer ~ Unidentified

This is yet another cup and saucer set from my collection. The pictures really don't do this piece justice as the fruit is a beautiful, vivid color. The mark on the bottom which can be seen in the second picture is "2AD326", however, I have absolutely no other information on this piece other than that.
Again, I am asking if anyone out there might know anything about this piece and wouldn't mind sharing with me, I would certainly appreciate it.
I know I am asking a lot of you all in "Collectorland", but I am trying to document all my pieces so when it's time to pass these treasures on to my child, they will have the full history in addition to the family history for each piece.
Thank you for looking at this piece, for your time and any help and assistance you might be able to provide.